diff --git a/Common/GPU/thin3d_create.h b/Common/GPU/thin3d_create.h
index 81aba58a1e62..5d0d1d1de27f 100644
--- a/Common/GPU/thin3d_create.h
+++ b/Common/GPU/thin3d_create.h
@@ -27,7 +27,6 @@ namespace Draw {
 DrawContext *T3DCreateGLContext(bool canChangeSwapInterval);
 
 #ifdef _WIN32
-DrawContext *T3DCreateDX9Context(IDirect3D9 *d3d, IDirect3D9Ex *d3dEx, int adapterId, IDirect3DDevice9 *device, IDirect3DDevice9Ex *deviceEx);
 DrawContext *T3DCreateD3D11Context(ID3D11Device *device, ID3D11DeviceContext *context, ID3D11Device1 *device1, ID3D11DeviceContext1 *context1, IDXGISwapChain *swapChain, D3D_FEATURE_LEVEL featureLevel, HWND hWnd, const std::vector<std::string> &adapterNames, int maxInflightFrames);
 #endif
 
diff --git a/GPU/Common/SoftwareTransformCommon.cpp b/GPU/Common/SoftwareTransformCommon.cpp
index dc6e8139436f..35e3b2e9408c 100644
--- a/GPU/Common/SoftwareTransformCommon.cpp
+++ b/GPU/Common/SoftwareTransformCommon.cpp
@@ -38,7 +38,7 @@
 
 // There's code here that simply expands transformed RECTANGLES into plain triangles.
 
-// We're gonna have to keep software transforming RECTANGLES, unless we use a geom shader which we can't on OpenGL ES 2.0 or DX9.
+// We're gonna have to keep software transforming RECTANGLES, unless we use a geom shader which we can't on OpenGL ES 2.0.
 // Usually, though, these primitives don't use lighting etc so it's no biggie performance wise, but it would be nice to get rid of
 // this code.
 
diff --git a/GPU/Common/TextureCacheCommon.cpp b/GPU/Common/TextureCacheCommon.cpp
index 5040762b9d14..e6347135ad98 100644
--- a/GPU/Common/TextureCacheCommon.cpp
+++ b/GPU/Common/TextureCacheCommon.cpp
@@ -3010,7 +3010,7 @@ void TextureCacheCommon::LoadTextureLevel(TexCacheEntry &entry, uint8_t *data, s
 			if (decPitch != stride) {
 				// Rearrange in place to match the requested pitch.
 				// (it can only be larger than w * bpp, and a match is likely.)
-				// Note! This is bad because it reads the mapped memory! TODO: Look into if DX9 does this right.
+				// Note! This is bad because it reads the mapped memory!
 				for (int y = scaledH - 1; y >= 0; --y) {
 					memcpy((u8 *)data + stride * y, (u8 *)data + decPitch * y, scaledW *4);
 				}
diff --git a/libretro/LibretroGraphicsContext.h b/libretro/LibretroGraphicsContext.h
index 96e7bbd69a1d..26c6c199d0a8 100644
--- a/libretro/LibretroGraphicsContext.h
+++ b/libretro/LibretroGraphicsContext.h
@@ -68,22 +68,6 @@ class LibretroHWRenderContext : public LibretroGraphicsContext {
 	retro_hw_render_callback hw_render_ = {};
 };
 
-#ifdef _WIN32
-class LibretroD3D9Context : public LibretroHWRenderContext {
-public:
-	LibretroD3D9Context() : LibretroHWRenderContext(RETRO_HW_CONTEXT_DIRECT3D, 9) {}
-	bool Init() override { return false; }
-
-	void CreateDrawContext() override {
-		draw_ = Draw::T3DCreateDX9Context(nullptr, nullptr, 0, nullptr, nullptr);
-		draw_->CreatePresets();
-	}
-
-	GPUCore GetGPUCore() override { return GPUCORE_DIRECTX9; }
-	const char *Ident() override { return "DirectX 9"; }
-};
-#endif
-
 class LibretroSoftwareContext : public LibretroGraphicsContext {
 public:
 	LibretroSoftwareContext() {}
diff --git a/libretro/Makefile.common b/libretro/Makefile.common
index 2ccc5eeeeafb..652fc5ef53ff 100644
--- a/libretro/Makefile.common
+++ b/libretro/Makefile.common
@@ -983,14 +983,6 @@ SOURCES_CXX += \
 
 
 ifeq ($(PLATFORM_EXT), win32)
-SOURCES_CXX += \
-	$(GPUDIR)/Directx9/DrawEngineDX9.cpp \
-	$(GPUDIR)/Directx9/FramebufferManagerDX9.cpp \
-	$(GPUDIR)/Directx9/GPU_DX9.cpp \
-	$(GPUDIR)/Directx9/ShaderManagerDX9.cpp \
-	$(GPUDIR)/Directx9/StateMappingDX9.cpp \
-	$(GPUDIR)/Directx9/TextureCacheDX9.cpp
-
 SOURCES_CXX += \
 	$(GPUDIR)/D3D11/DrawEngineD3D11.cpp \
 	$(GPUDIR)/D3D11/FramebufferManagerD3D11.cpp \