diff --git a/MdeModulePkg/Include/Protocol/DisplayProtocol.h b/MdeModulePkg/Include/Protocol/DisplayProtocol.h
index be08b74b296a..79a6c9d9654a 100644
--- a/MdeModulePkg/Include/Protocol/DisplayProtocol.h
+++ b/MdeModulePkg/Include/Protocol/DisplayProtocol.h
@@ -238,7 +238,7 @@ struct _FORM_DISPLAY_ENGINE_FORM {
   //
   LIST_ENTRY                       StatementListOSF;
   //
-  // The input screen dimenstions info.
+  // The input screen dimensions info.
   //
   EFI_SCREEN_DESCRIPTOR            *ScreenDimensions;
   //
diff --git a/MdeModulePkg/Library/CustomizedDisplayLib/CustomizedDisplayLib.c b/MdeModulePkg/Library/CustomizedDisplayLib/CustomizedDisplayLib.c
index b3da13d0a3dc..1099b640a2d2 100644
--- a/MdeModulePkg/Library/CustomizedDisplayLib/CustomizedDisplayLib.c
+++ b/MdeModulePkg/Library/CustomizedDisplayLib/CustomizedDisplayLib.c
@@ -64,7 +64,7 @@ DisplayPageFrame (
     return EFI_INVALID_PARAMETER;
   }
 
-  Status = ScreenDiemensionInfoValidate (FormData);
+  Status = ScreenDimensionInfoValidate (FormData);
   if (EFI_ERROR (Status)) {
     return Status;
   }
diff --git a/MdeModulePkg/Library/CustomizedDisplayLib/CustomizedDisplayLibInternal.c b/MdeModulePkg/Library/CustomizedDisplayLib/CustomizedDisplayLibInternal.c
index 42dd8f869d17..2d807bfcb66b 100644
--- a/MdeModulePkg/Library/CustomizedDisplayLib/CustomizedDisplayLibInternal.c
+++ b/MdeModulePkg/Library/CustomizedDisplayLib/CustomizedDisplayLibInternal.c
@@ -378,7 +378,7 @@ ProcessExternedOpcode (
 }
 
 /**
-  Validate the input screen diemenstion info.
+  Validate the input screen dimension info.
 
   @param  FormData               The input form data info.
 
@@ -387,7 +387,7 @@ ProcessExternedOpcode (
 
 **/
 EFI_STATUS
-ScreenDiemensionInfoValidate (
+ScreenDimensionInfoValidate (
   IN FORM_DISPLAY_ENGINE_FORM  *FormData
   )
 {
diff --git a/MdeModulePkg/Library/CustomizedDisplayLib/CustomizedDisplayLibInternal.h b/MdeModulePkg/Library/CustomizedDisplayLib/CustomizedDisplayLibInternal.h
index 01213cb059ef..a9ac17ca7c83 100644
--- a/MdeModulePkg/Library/CustomizedDisplayLib/CustomizedDisplayLibInternal.h
+++ b/MdeModulePkg/Library/CustomizedDisplayLib/CustomizedDisplayLibInternal.h
@@ -129,7 +129,7 @@ PrintFramework (
   );
 
 /**
-  Validate the input screen diemenstion info.
+  Validate the input screen dimension info.
 
   @param  FormData               The input form data info.
 
@@ -138,7 +138,7 @@ PrintFramework (
 
 **/
 EFI_STATUS
-ScreenDiemensionInfoValidate (
+ScreenDimensionInfoValidate (
   IN FORM_DISPLAY_ENGINE_FORM  *FormData
   );