diff --git a/src/OpenTelemetry/.publicApi/net462/PublicAPI.Unshipped.txt b/src/OpenTelemetry/.publicApi/net462/PublicAPI.Unshipped.txt
index 88503e8c781..c7028e2654d 100644
--- a/src/OpenTelemetry/.publicApi/net462/PublicAPI.Unshipped.txt
+++ b/src/OpenTelemetry/.publicApi/net462/PublicAPI.Unshipped.txt
@@ -20,6 +20,7 @@ OpenTelemetry.OpenTelemetryBuilder.WithMetrics(System.Action<OpenTelemetry.Metri
 OpenTelemetry.OpenTelemetryBuilder.WithTracing() -> OpenTelemetry.OpenTelemetryBuilder!
 OpenTelemetry.OpenTelemetryBuilder.WithTracing(System.Action<OpenTelemetry.Trace.TracerProviderBuilder!>! configure) -> OpenTelemetry.OpenTelemetryBuilder!
 OpenTelemetry.OpenTelemetryServiceCollectionExtensions
+OpenTelemetry.Resources.ResourceBuilder.AddDetector(System.Func<System.IServiceProvider?, OpenTelemetry.Resources.IResourceDetector!>! resourceDetectorFactory) -> OpenTelemetry.Resources.ResourceBuilder!
 static OpenTelemetry.Metrics.MeterProviderBuilderExtensions.AddReader(this OpenTelemetry.Metrics.MeterProviderBuilder! meterProviderBuilder, System.Func<System.IServiceProvider!, OpenTelemetry.Metrics.MetricReader!>! implementationFactory) -> OpenTelemetry.Metrics.MeterProviderBuilder!
 static OpenTelemetry.OpenTelemetryServiceCollectionExtensions.AddOpenTelemetry(this Microsoft.Extensions.DependencyInjection.IServiceCollection! services) -> OpenTelemetry.OpenTelemetryBuilder!
 static OpenTelemetry.Metrics.MeterProviderBuilderExtensions.AddReader<T>(this OpenTelemetry.Metrics.MeterProviderBuilder! meterProviderBuilder) -> OpenTelemetry.Metrics.MeterProviderBuilder!
diff --git a/src/OpenTelemetry/.publicApi/net6.0/PublicAPI.Unshipped.txt b/src/OpenTelemetry/.publicApi/net6.0/PublicAPI.Unshipped.txt
index 88503e8c781..c7028e2654d 100644
--- a/src/OpenTelemetry/.publicApi/net6.0/PublicAPI.Unshipped.txt
+++ b/src/OpenTelemetry/.publicApi/net6.0/PublicAPI.Unshipped.txt
@@ -20,6 +20,7 @@ OpenTelemetry.OpenTelemetryBuilder.WithMetrics(System.Action<OpenTelemetry.Metri
 OpenTelemetry.OpenTelemetryBuilder.WithTracing() -> OpenTelemetry.OpenTelemetryBuilder!
 OpenTelemetry.OpenTelemetryBuilder.WithTracing(System.Action<OpenTelemetry.Trace.TracerProviderBuilder!>! configure) -> OpenTelemetry.OpenTelemetryBuilder!
 OpenTelemetry.OpenTelemetryServiceCollectionExtensions
+OpenTelemetry.Resources.ResourceBuilder.AddDetector(System.Func<System.IServiceProvider?, OpenTelemetry.Resources.IResourceDetector!>! resourceDetectorFactory) -> OpenTelemetry.Resources.ResourceBuilder!
 static OpenTelemetry.Metrics.MeterProviderBuilderExtensions.AddReader(this OpenTelemetry.Metrics.MeterProviderBuilder! meterProviderBuilder, System.Func<System.IServiceProvider!, OpenTelemetry.Metrics.MetricReader!>! implementationFactory) -> OpenTelemetry.Metrics.MeterProviderBuilder!
 static OpenTelemetry.OpenTelemetryServiceCollectionExtensions.AddOpenTelemetry(this Microsoft.Extensions.DependencyInjection.IServiceCollection! services) -> OpenTelemetry.OpenTelemetryBuilder!
 static OpenTelemetry.Metrics.MeterProviderBuilderExtensions.AddReader<T>(this OpenTelemetry.Metrics.MeterProviderBuilder! meterProviderBuilder) -> OpenTelemetry.Metrics.MeterProviderBuilder!
diff --git a/src/OpenTelemetry/.publicApi/netstandard2.0/PublicAPI.Unshipped.txt b/src/OpenTelemetry/.publicApi/netstandard2.0/PublicAPI.Unshipped.txt
index 88503e8c781..c7028e2654d 100644
--- a/src/OpenTelemetry/.publicApi/netstandard2.0/PublicAPI.Unshipped.txt
+++ b/src/OpenTelemetry/.publicApi/netstandard2.0/PublicAPI.Unshipped.txt
@@ -20,6 +20,7 @@ OpenTelemetry.OpenTelemetryBuilder.WithMetrics(System.Action<OpenTelemetry.Metri
 OpenTelemetry.OpenTelemetryBuilder.WithTracing() -> OpenTelemetry.OpenTelemetryBuilder!
 OpenTelemetry.OpenTelemetryBuilder.WithTracing(System.Action<OpenTelemetry.Trace.TracerProviderBuilder!>! configure) -> OpenTelemetry.OpenTelemetryBuilder!
 OpenTelemetry.OpenTelemetryServiceCollectionExtensions
+OpenTelemetry.Resources.ResourceBuilder.AddDetector(System.Func<System.IServiceProvider?, OpenTelemetry.Resources.IResourceDetector!>! resourceDetectorFactory) -> OpenTelemetry.Resources.ResourceBuilder!
 static OpenTelemetry.Metrics.MeterProviderBuilderExtensions.AddReader(this OpenTelemetry.Metrics.MeterProviderBuilder! meterProviderBuilder, System.Func<System.IServiceProvider!, OpenTelemetry.Metrics.MetricReader!>! implementationFactory) -> OpenTelemetry.Metrics.MeterProviderBuilder!
 static OpenTelemetry.OpenTelemetryServiceCollectionExtensions.AddOpenTelemetry(this Microsoft.Extensions.DependencyInjection.IServiceCollection! services) -> OpenTelemetry.OpenTelemetryBuilder!
 static OpenTelemetry.Metrics.MeterProviderBuilderExtensions.AddReader<T>(this OpenTelemetry.Metrics.MeterProviderBuilder! meterProviderBuilder) -> OpenTelemetry.Metrics.MeterProviderBuilder!
diff --git a/src/OpenTelemetry/.publicApi/netstandard2.1/PublicAPI.Unshipped.txt b/src/OpenTelemetry/.publicApi/netstandard2.1/PublicAPI.Unshipped.txt
index 88503e8c781..c7028e2654d 100644
--- a/src/OpenTelemetry/.publicApi/netstandard2.1/PublicAPI.Unshipped.txt
+++ b/src/OpenTelemetry/.publicApi/netstandard2.1/PublicAPI.Unshipped.txt
@@ -20,6 +20,7 @@ OpenTelemetry.OpenTelemetryBuilder.WithMetrics(System.Action<OpenTelemetry.Metri
 OpenTelemetry.OpenTelemetryBuilder.WithTracing() -> OpenTelemetry.OpenTelemetryBuilder!
 OpenTelemetry.OpenTelemetryBuilder.WithTracing(System.Action<OpenTelemetry.Trace.TracerProviderBuilder!>! configure) -> OpenTelemetry.OpenTelemetryBuilder!
 OpenTelemetry.OpenTelemetryServiceCollectionExtensions
+OpenTelemetry.Resources.ResourceBuilder.AddDetector(System.Func<System.IServiceProvider?, OpenTelemetry.Resources.IResourceDetector!>! resourceDetectorFactory) -> OpenTelemetry.Resources.ResourceBuilder!
 static OpenTelemetry.Metrics.MeterProviderBuilderExtensions.AddReader(this OpenTelemetry.Metrics.MeterProviderBuilder! meterProviderBuilder, System.Func<System.IServiceProvider!, OpenTelemetry.Metrics.MetricReader!>! implementationFactory) -> OpenTelemetry.Metrics.MeterProviderBuilder!
 static OpenTelemetry.OpenTelemetryServiceCollectionExtensions.AddOpenTelemetry(this Microsoft.Extensions.DependencyInjection.IServiceCollection! services) -> OpenTelemetry.OpenTelemetryBuilder!
 static OpenTelemetry.Metrics.MeterProviderBuilderExtensions.AddReader<T>(this OpenTelemetry.Metrics.MeterProviderBuilder! meterProviderBuilder) -> OpenTelemetry.Metrics.MeterProviderBuilder!
diff --git a/src/OpenTelemetry/CHANGELOG.md b/src/OpenTelemetry/CHANGELOG.md
index d2877411797..57f0189de59 100644
--- a/src/OpenTelemetry/CHANGELOG.md
+++ b/src/OpenTelemetry/CHANGELOG.md
@@ -2,6 +2,9 @@
 
 ## Unreleased
 
+* Added `AddDetector` factory overload on `ResourceBuilder`.
+  ([#4141](https://github.com/open-telemetry/opentelemetry-dotnet/pull/4141))
+
 ## 1.4.0-rc.3
 
 Released 2023-Feb-01
diff --git a/src/OpenTelemetry/Resources/ResourceBuilder.cs b/src/OpenTelemetry/Resources/ResourceBuilder.cs
index 44657001c9d..25f408bf675 100644
--- a/src/OpenTelemetry/Resources/ResourceBuilder.cs
+++ b/src/OpenTelemetry/Resources/ResourceBuilder.cs
@@ -142,8 +142,7 @@ public ResourceBuilder AddDetector(IResourceDetector resourceDetector)
         /// </remarks>
         /// <param name="resourceDetectorFactory">Resource detector factory.</param>
         /// <returns>Supplied <see cref="ResourceBuilder"/> for call chaining.</returns>
-        // Note: This API may be made public if there is a need for it.
-        internal ResourceBuilder AddDetector(Func<IServiceProvider?, IResourceDetector> resourceDetectorFactory)
+        public ResourceBuilder AddDetector(Func<IServiceProvider?, IResourceDetector> resourceDetectorFactory)
         {
             Guard.ThrowIfNull(resourceDetectorFactory);