diff --git a/Tests/LibGfx/TestImageDecoder.cpp b/Tests/LibGfx/TestImageDecoder.cpp
index eb2c5e4ffa..b449d4ea2f 100644
--- a/Tests/LibGfx/TestImageDecoder.cpp
+++ b/Tests/LibGfx/TestImageDecoder.cpp
@@ -489,6 +489,18 @@ TEST_CASE(test_tiff_rgb_alpha)
     EXPECT_EQ(frame.image->get_pixel(60, 75), Gfx::Color::NamedColor::Red);
 }
 
+TEST_CASE(test_tiff_palette_alpha)
+{
+    auto file = MUST(Core::MappedFile::map(TEST_INPUT("tiff/rgb_palette_alpha.tiff"sv)));
+    EXPECT(Gfx::TIFFImageDecoderPlugin::sniff(file->bytes()));
+    auto plugin_decoder = TRY_OR_FAIL(Gfx::TIFFImageDecoderPlugin::create(file->bytes()));
+
+    auto frame = TRY_OR_FAIL(expect_single_frame_of_size(*plugin_decoder, { 400, 300 }));
+
+    EXPECT_EQ(frame.image->get_pixel(0, 0).alpha(), 0);
+    EXPECT_EQ(frame.image->get_pixel(60, 75), Gfx::Color::NamedColor::Red);
+}
+
 TEST_CASE(test_tiff_16_bits)
 {
     auto file = MUST(Core::MappedFile::map(TEST_INPUT("tiff/16_bits.tiff"sv)));
diff --git a/Tests/LibGfx/test-inputs/tiff/rgb_palette_alpha.tiff b/Tests/LibGfx/test-inputs/tiff/rgb_palette_alpha.tiff
new file mode 100644
index 0000000000..bbd37e86c0
Binary files /dev/null and b/Tests/LibGfx/test-inputs/tiff/rgb_palette_alpha.tiff differ
diff --git a/Userland/Libraries/LibGfx/ImageFormats/TIFFLoader.cpp b/Userland/Libraries/LibGfx/ImageFormats/TIFFLoader.cpp
index a39f0e61cf..78f87d3b0c 100644
--- a/Userland/Libraries/LibGfx/ImageFormats/TIFFLoader.cpp
+++ b/Userland/Libraries/LibGfx/ImageFormats/TIFFLoader.cpp
@@ -92,6 +92,7 @@ private:
         switch (*m_metadata.photometric_interpretation()) {
         case PhotometricInterpretation::WhiteIsZero:
         case PhotometricInterpretation::BlackIsZero:
+        case PhotometricInterpretation::RGBPalette:
             return 1;
         case PhotometricInterpretation::RGB:
             return 3;
@@ -147,6 +148,29 @@ private:
             return Color(first_component, second_component, third_component, alpha);
         }
 
+        if (m_metadata.photometric_interpretation() == PhotometricInterpretation::RGBPalette) {
+            auto const index = TRY(stream.read_bits<u16>(bits_per_sample[0]));
+            auto const alpha = TRY(manage_extra_channels());
+
+            // SamplesPerPixel == 1 is a requirement for RGBPalette
+            // From description of PhotometricInterpretation in Section 8: Baseline Field Reference Guide
+            // "In a TIFF ColorMap, all the Red values come first, followed by the Green values,
+            //  then the Blue values."
+            auto const size = 1 << (*m_metadata.bits_per_sample())[0];
+            auto const red_offset = 0 * size;
+            auto const green_offset = 1 * size;
+            auto const blue_offset = 2 * size;
+
+            auto const color_map = *m_metadata.color_map();
+
+            // FIXME: ColorMap's values are always 16-bits, stop truncating them when we support 16 bits bitmaps
+            return Color(
+                color_map[red_offset + index] >> 8,
+                color_map[green_offset + index] >> 8,
+                color_map[blue_offset + index] >> 8,
+                alpha);
+        }
+
         if (*m_metadata.photometric_interpretation() == PhotometricInterpretation::WhiteIsZero
             || *m_metadata.photometric_interpretation() == PhotometricInterpretation::BlackIsZero) {
             auto luminosity = TRY(read_component(stream, bits_per_sample[0]));
diff --git a/Userland/Libraries/LibGfx/TIFFGenerator.py b/Userland/Libraries/LibGfx/TIFFGenerator.py
index 3470a6465d..c655dca594 100755
--- a/Userland/Libraries/LibGfx/TIFFGenerator.py
+++ b/Userland/Libraries/LibGfx/TIFFGenerator.py
@@ -123,6 +123,7 @@ known_tags: List[Tag] = [
     Tag('296', [TIFFType.UnsignedShort], [], ResolutionUnit.Inch, "ResolutionUnit", ResolutionUnit),
     Tag('339', [TIFFType.UnsignedShort], [], SampleFormat.Unsigned, "SampleFormat", SampleFormat),
     Tag('317', [TIFFType.UnsignedShort], [1], Predictor.NoPrediction, "Predictor", Predictor),
+    Tag('320', [TIFFType.UnsignedShort], [], None, "ColorMap"),
     Tag('338', [TIFFType.UnsignedShort], [], None, "ExtraSamples", ExtraSample),
     Tag('34675', [TIFFType.Undefined], [], None, "ICCProfile"),
 ]