diff --git a/docs/source/exporters/onnx/overview.mdx b/docs/source/exporters/onnx/overview.mdx
index 22471c297a..747e1396fb 100644
--- a/docs/source/exporters/onnx/overview.mdx
+++ b/docs/source/exporters/onnx/overview.mdx
@@ -77,6 +77,7 @@ Supported architectures from [🤗 Transformers](https://huggingface.co/docs/tra
 - Pegasus
 - Perceiver
 - Phi
+- Phi3
 - Pix2Struct
 - PoolFormer
 - Qwen2(Qwen1.5)
diff --git a/optimum/exporters/onnx/model_configs.py b/optimum/exporters/onnx/model_configs.py
index d4c4ac934b..97f3f7b999 100644
--- a/optimum/exporters/onnx/model_configs.py
+++ b/optimum/exporters/onnx/model_configs.py
@@ -51,6 +51,7 @@
     NormalizedSeq2SeqConfig,
     NormalizedTextAndVisionConfig,
     NormalizedTextConfig,
+    NormalizedTextConfigWithGQA,
     NormalizedVisionConfig,
     is_diffusers_available,
     logging,
@@ -287,6 +288,14 @@ class PhiOnnxConfig(TextDecoderWithPositionIdsOnnxConfig):
     NORMALIZED_CONFIG_CLASS = NormalizedTextConfig
 
 
+class Phi3OnnxConfig(PhiOnnxConfig):
+    DUMMY_INPUT_GENERATOR_CLASSES = (
+        MistralDummyPastKeyValuesGenerator,
+    ) + TextDecoderOnnxConfig.DUMMY_INPUT_GENERATOR_CLASSES
+    DUMMY_PKV_GENERATOR_CLASS = MistralDummyPastKeyValuesGenerator
+    NORMALIZED_CONFIG_CLASS = NormalizedTextConfigWithGQA
+
+
 class MistralOnnxConfig(TextDecoderWithPositionIdsOnnxConfig):
     # This is because of the patching of torch.triu in AttentionMaskConverter, that exists from transformers>=4.35
     MIN_TRANSFORMERS_VERSION = version.parse("4.34.99")
diff --git a/optimum/exporters/tasks.py b/optimum/exporters/tasks.py
index efa782353b..608b3df0d7 100644
--- a/optimum/exporters/tasks.py
+++ b/optimum/exporters/tasks.py
@@ -893,6 +893,14 @@ class TasksManager:
             "text-classification",
             onnx="PhiOnnxConfig",
         ),
+        "phi3": supported_tasks_mapping(
+            "feature-extraction",
+            "feature-extraction-with-past",
+            "text-generation",
+            "text-generation-with-past",
+            "text-classification",
+            onnx="Phi3OnnxConfig",
+        ),
         "pix2struct": supported_tasks_mapping(
             "image-to-text",
             "image-to-text-with-past",
diff --git a/optimum/utils/__init__.py b/optimum/utils/__init__.py
index 07be3f7e1a..5d5044e63e 100644
--- a/optimum/utils/__init__.py
+++ b/optimum/utils/__init__.py
@@ -80,5 +80,6 @@
     NormalizedSeq2SeqConfig,
     NormalizedTextAndVisionConfig,
     NormalizedTextConfig,
+    NormalizedTextConfigWithGQA,
     NormalizedVisionConfig,
 )