diff --git a/android/.idea/runConfigurations.xml b/android/.idea/runConfigurations.xml
index e497da999..7f68460d8 100644
--- a/android/.idea/runConfigurations.xml
+++ b/android/.idea/runConfigurations.xml
@@ -3,7 +3,6 @@
   <component name="RunConfigurationProducerService">
     <option name="ignoredProducers">
       <set>
-        <option value="com.android.tools.idea.compose.preview.runconfiguration.ComposePreviewRunConfigurationProducer" />
         <option value="org.jetbrains.plugins.gradle.execution.test.runner.AllInPackageGradleConfigurationProducer" />
         <option value="org.jetbrains.plugins.gradle.execution.test.runner.TestClassGradleConfigurationProducer" />
         <option value="org.jetbrains.plugins.gradle.execution.test.runner.TestMethodGradleConfigurationProducer" />
diff --git a/android/app/src/main/java/com/github/stenzek/duckstation/RatioPreference.java b/android/app/src/main/java/com/github/stenzek/duckstation/RatioPreference.java
new file mode 100644
index 000000000..fe6fc5b41
--- /dev/null
+++ b/android/app/src/main/java/com/github/stenzek/duckstation/RatioPreference.java
@@ -0,0 +1,198 @@
+package com.github.stenzek.duckstation;
+
+import android.content.Context;
+import android.content.SharedPreferences;
+import android.content.res.Resources;
+import android.util.AttributeSet;
+import android.util.TypedValue;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.AdapterView;
+import android.widget.BaseAdapter;
+import android.widget.Spinner;
+import android.widget.TextView;
+
+import androidx.annotation.Nullable;
+import androidx.preference.Preference;
+import androidx.preference.PreferenceDataStore;
+import androidx.preference.PreferenceManager;
+import androidx.preference.PreferenceViewHolder;
+
+public class RatioPreference extends Preference {
+    private String mNumeratorKey;
+    private String mDenominatorKey;
+
+    private int mNumeratorValue = 1;
+    private int mDenominatorValue = 1;
+
+    private int mMinimumNumerator = 1;
+    private int mMaximumNumerator = 50;
+    private int mDefaultNumerator = 1;
+    private int mMinimumDenominator = 1;
+    private int mMaximumDenominator = 50;
+    private int mDefaultDenominator = 1;
+
+    private void initAttributes(AttributeSet attrs) {
+        for (int i = 0; i < attrs.getAttributeCount(); i++) {
+            final String key = attrs.getAttributeName(i);
+            if (key.equals("numeratorKey")) {
+                mNumeratorKey = attrs.getAttributeValue(i);
+            } else if (key.equals("minimumNumerator")) {
+                mMinimumNumerator = attrs.getAttributeIntValue(i, 1);
+            } else if (key.equals("maximumNumerator")) {
+                mMaximumNumerator = attrs.getAttributeIntValue(i, 1);
+            } else if (key.equals("defaultNumerator")) {
+                mDefaultNumerator = attrs.getAttributeIntValue(i, 1);
+            } else if(key.equals("denominatorKey")) {
+                mDenominatorKey = attrs.getAttributeValue(i);
+            } else if (key.equals("minimumDenominator")) {
+                mMinimumDenominator = attrs.getAttributeIntValue(i, 1);
+            } else if (key.equals("maximumDenominator")) {
+                mMaximumDenominator = attrs.getAttributeIntValue(i, 1);
+            } else if (key.equals("defaultDenominator")) {
+                mDefaultDenominator = attrs.getAttributeIntValue(i, 1);
+            }
+        }
+    }
+
+    public RatioPreference(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
+        super(context, attrs, defStyleAttr, defStyleRes);
+        setWidgetLayoutResource(R.layout.layout_ratio_preference);
+        initAttributes(attrs);
+    }
+
+    public RatioPreference(Context context, AttributeSet attrs, int defStyleAttr) {
+        super(context, attrs, defStyleAttr);
+        setWidgetLayoutResource(R.layout.layout_ratio_preference);
+        initAttributes(attrs);
+    }
+
+    public RatioPreference(Context context, AttributeSet attrs) {
+        super(context, attrs);
+        setWidgetLayoutResource(R.layout.layout_ratio_preference);
+        initAttributes(attrs);
+    }
+
+    public RatioPreference(Context context) {
+        super(context);
+        setWidgetLayoutResource(R.layout.layout_ratio_preference);
+    }
+
+    private void persistValues() {
+        final PreferenceDataStore dataStore = getPreferenceDataStore();
+        if (dataStore != null) {
+            if (mNumeratorKey != null)
+                dataStore.putInt(mNumeratorKey, mNumeratorValue);
+            if (mDenominatorKey != null)
+                dataStore.putInt(mDenominatorKey, mDenominatorValue);
+        } else {
+            SharedPreferences.Editor editor = getPreferenceManager().getSharedPreferences().edit();
+            if (mNumeratorKey != null)
+                editor.putInt(mNumeratorKey, mNumeratorValue);
+            if (mDenominatorKey != null)
+                editor.putInt(mDenominatorKey, mDenominatorValue);
+            editor.commit();
+        }
+    }
+
+    @Override
+    protected void onAttachedToHierarchy(PreferenceManager preferenceManager) {
+        super.onAttachedToHierarchy(preferenceManager);
+        setInitialValue();
+    }
+
+    private void setInitialValue() {
+        final PreferenceDataStore dataStore = getPreferenceDataStore();
+        if (dataStore != null) {
+            if (mNumeratorKey != null)
+                mNumeratorValue = dataStore.getInt(mNumeratorKey, mDefaultNumerator);
+            if (mDenominatorKey != null)
+                mDenominatorValue = dataStore.getInt(mDenominatorKey, mDefaultDenominator);
+        } else {
+            final SharedPreferences pm = getPreferenceManager().getSharedPreferences();
+            if (mNumeratorKey != null)
+                mNumeratorValue = pm.getInt(mNumeratorKey, mDefaultNumerator);
+            if (mDenominatorKey != null)
+                mDenominatorValue = pm.getInt(mDenominatorKey, mDefaultDenominator);
+        }
+    }
+
+    private static BaseAdapter generateDropdownItems(int min, int max) {
+        return new BaseAdapter() {
+            @Override
+            public int getCount() {
+                return (max - min) + 1;
+            }
+
+            @Override
+            public Object getItem(int position) {
+                return Integer.toString(min + position);
+            }
+
+            @Override
+            public long getItemId(int position) {
+                return position;
+            }
+
+            @Override
+            public View getView(int position, View convertView, ViewGroup parent) {
+                TextView view;
+                if (convertView != null) {
+                    view = (TextView) convertView;
+                } else {
+                    view = new TextView(parent.getContext());
+
+                    Resources r = parent.getResources();
+                    float px = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 10.0f, r.getDisplayMetrics());
+                    view.setPadding((int) px, (int) px, (int) px, (int) px);
+                }
+
+                view.setText(Integer.toString(min + position));
+                return view;
+            }
+        };
+    }
+
+    @Override
+    public void onBindViewHolder(PreferenceViewHolder holder) {
+        super.onBindViewHolder(holder);
+        holder.itemView.setClickable(false);
+
+        Spinner numeratorSpinner = (Spinner) holder.findViewById(R.id.numerator);
+        numeratorSpinner.setAdapter(generateDropdownItems(mMinimumNumerator, mMaximumNumerator));
+        numeratorSpinner.setSelection(mNumeratorValue - mMinimumNumerator);
+        numeratorSpinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
+            @Override
+            public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
+                final int newValue = position + mMinimumNumerator;
+                if (newValue != mNumeratorValue) {
+                    mNumeratorValue = newValue;
+                    persistValues();
+                }
+            }
+
+            @Override
+            public void onNothingSelected(AdapterView<?> parent) {
+            }
+        });
+        Spinner denominatorSpinner = (Spinner) holder.findViewById(R.id.denominator);
+        denominatorSpinner.setAdapter(generateDropdownItems(mMinimumDenominator, mMaximumDenominator));
+        denominatorSpinner.setSelection(mDenominatorValue - mMinimumDenominator);
+        denominatorSpinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
+            @Override
+            public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
+                final int newValue = position + mMinimumDenominator;
+                if (newValue != mDenominatorValue) {
+                    mDenominatorValue = newValue;
+                    persistValues();
+                }
+            }
+
+            @Override
+            public void onNothingSelected(AdapterView<?> parent) {
+            }
+        });
+    }
+
+
+}
diff --git a/android/app/src/main/res/layout/layout_ratio_preference.xml b/android/app/src/main/res/layout/layout_ratio_preference.xml
new file mode 100644
index 000000000..1191b62f0
--- /dev/null
+++ b/android/app/src/main/res/layout/layout_ratio_preference.xml
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="wrap_content"
+    android:layout_height="wrap_content"
+    android:orientation="horizontal">
+
+    <Spinner
+        android:id="@+id/numerator"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_gravity="center_vertical" />
+
+    <TextView
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_gravity="center_vertical"
+        android:text=":" />
+
+    <Spinner
+        android:id="@+id/denominator"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_gravity="center_vertical" />
+</LinearLayout>
\ No newline at end of file
diff --git a/android/app/src/main/res/values-es/arrays.xml b/android/app/src/main/res/values-es/arrays.xml
index e4d3d8d80..d74fb6b1b 100644
--- a/android/app/src/main/res/values-es/arrays.xml
+++ b/android/app/src/main/res/values-es/arrays.xml
@@ -46,6 +46,7 @@
     <string-array name="settings_display_aspect_ratio_names">
         <item>Auto (Nativo del juego)</item>
         <item>Auto (Match Display)</item>
+        <item>Custom</item>
         <item>4:3</item>
         <item>16:9</item>
         <item>19:9</item>
diff --git a/android/app/src/main/res/values-it/arrays.xml b/android/app/src/main/res/values-it/arrays.xml
index 7aa1beea3..1fef79048 100644
--- a/android/app/src/main/res/values-it/arrays.xml
+++ b/android/app/src/main/res/values-it/arrays.xml
@@ -46,6 +46,7 @@
     <string-array name="settings_display_aspect_ratio_names">
         <item>Auto (Game Native)</item>
         <item>Auto (Match Display)</item>
+        <item>Custom</item>
         <item>4:3</item>
         <item>16:9</item>
         <item>19:9</item>
diff --git a/android/app/src/main/res/values-nl/arrays.xml b/android/app/src/main/res/values-nl/arrays.xml
index 44cec0b72..4f0cdfedb 100644
--- a/android/app/src/main/res/values-nl/arrays.xml
+++ b/android/app/src/main/res/values-nl/arrays.xml
@@ -46,6 +46,7 @@
     <string-array name="settings_display_aspect_ratio_names">
         <item>Auto (Game Native)</item>
         <item>Auto (Match Display)</item>
+        <item>Custom</item>
         <item>4:3</item>
         <item>16:9</item>
         <item>19:9</item>
diff --git a/android/app/src/main/res/values-pt-rBR/arrays.xml b/android/app/src/main/res/values-pt-rBR/arrays.xml
index ea3353b7c..f0f36f07d 100644
--- a/android/app/src/main/res/values-pt-rBR/arrays.xml
+++ b/android/app/src/main/res/values-pt-rBR/arrays.xml
@@ -46,6 +46,7 @@
     <string-array name="settings_display_aspect_ratio_names">
       <item>Auto (Nativo)</item>
       <item>Auto (Corresponder a Janela)</item>
+      <item>Custom</item>
       <item>4:3</item>
       <item>16:9</item>
       <item>19:9</item>
diff --git a/android/app/src/main/res/values-ru/arrays.xml b/android/app/src/main/res/values-ru/arrays.xml
index 003ae4f44..3e492c4b8 100644
--- a/android/app/src/main/res/values-ru/arrays.xml
+++ b/android/app/src/main/res/values-ru/arrays.xml
@@ -46,6 +46,7 @@
 	<string-array name="settings_display_aspect_ratio_names">
    		<item>Автонастройка (нативно игре)</item>
     		<item>Автонастройка (под экран)</item>
+    		<item>Custom</item>
     		<item>4:3</item>
     		<item>16:9</item>
     		<item>19:9</item>
diff --git a/android/app/src/main/res/values/arrays.xml b/android/app/src/main/res/values/arrays.xml
index fda4207b8..7f4dcbcf6 100644
--- a/android/app/src/main/res/values/arrays.xml
+++ b/android/app/src/main/res/values/arrays.xml
@@ -90,6 +90,7 @@
     <string-array name="settings_display_aspect_ratio_names">
         <item>Auto (Game Native)</item>
         <item>Auto (Match Display)</item>
+        <item>Custom</item>
         <item>4:3</item>
         <item>16:9</item>
         <item>19:9</item>
@@ -99,6 +100,7 @@
     <string-array name="settings_display_aspect_ratio_values">
         <item>Auto (Game Native)</item>
         <item>Auto (Match Window)</item>
+        <item>Custom</item>
         <item>4:3</item>
         <item>16:9</item>
         <item>19:9</item>
diff --git a/android/app/src/main/res/values/strings.xml b/android/app/src/main/res/values/strings.xml
index 22659f534..b8e82b1f2 100644
--- a/android/app/src/main/res/values/strings.xml
+++ b/android/app/src/main/res/values/strings.xml
@@ -352,4 +352,6 @@
     <string name="settings_disable_widescreen">Disable Widescreen</string>
     <string name="settings_cdrom_seek_speedup">CD-ROM Seek Speedup</string>
     <string name="settings_summary_cdrom_seek_speedup">Speeds up CD-ROM seeks by the specified factor. May improve loading speeds in some games, at the cost of breaking others.</string>
+    <string name="settings_custom_aspect_ratio">Custom Aspect Ratio</string>
+    <string name="settings_summary_custom_aspect_ratio">Used when aspect ratio is set to Custom.</string>
 </resources>
diff --git a/android/app/src/main/res/xml/display_preferences.xml b/android/app/src/main/res/xml/display_preferences.xml
index a195dbaae..e63c0bf77 100644
--- a/android/app/src/main/res/xml/display_preferences.xml
+++ b/android/app/src/main/res/xml/display_preferences.xml
@@ -34,6 +34,20 @@
         app:useSimpleSummaryProvider="true"
         app:iconSpaceReserved="false" />
 
+    <com.github.stenzek.duckstation.RatioPreference
+        numeratorKey="Display/CustomAspectRatioNumerator"
+        defaultNumerator="4"
+        minimumNumerator="1"
+        maximumNunerator="100"
+        denominatorKey="Display/CustomAspectRatioDenominator"
+        defaultDenominator="3"
+        minimumDenominator="1"
+        maximumDenominator="100"
+        app:title="@string/settings_custom_aspect_ratio"
+        app:summary="@string/settings_summary_custom_aspect_ratio"
+        app:useSimpleSummaryProvider="true"
+        app:iconSpaceReserved="false" />
+
     <ListPreference
         app:key="GPU/DownsampleMode"
         app:title="@string/settings_downsample_mode"