diff --git a/SecurityPkg/Include/Library/TpmCommLib.h b/SecurityPkg/Include/Library/TpmCommLib.h
index 7e102a6a11..1d18f8d837 100644
--- a/SecurityPkg/Include/Library/TpmCommLib.h
+++ b/SecurityPkg/Include/Library/TpmCommLib.h
@@ -185,7 +185,7 @@ typedef TIS_PC_REGISTERS  *TIS_PC_REGISTERS_PTR;
 #define TIS_TIMEOUT_D               750 * 1000   // 750ms
 
 //
-// Max TPM command/reponse length
+// Max TPM command/response length
 //
 #define TPMCMDBUFLENGTH             1024
 
@@ -210,7 +210,7 @@ TisPcWaitRegisterBits (
   );
 
 /**
-  Get BurstCount by reading the burstCount field of a TIS regiger
+  Get BurstCount by reading the burstCount field of a TIS register
   in the time of default TIS_TIMEOUT_D.
 
   @param[in]  TisReg                Pointer to TIS register.
diff --git a/SecurityPkg/Library/Tpm12DeviceLibDTpm/Tpm12Tis.c b/SecurityPkg/Library/Tpm12DeviceLibDTpm/Tpm12Tis.c
index 1caa076203..f858090479 100644
--- a/SecurityPkg/Library/Tpm12DeviceLibDTpm/Tpm12Tis.c
+++ b/SecurityPkg/Library/Tpm12DeviceLibDTpm/Tpm12Tis.c
@@ -28,7 +28,7 @@ typedef enum {
 } PTP_INTERFACE_TYPE;
 
 //
-// Max TPM command/reponse length
+// Max TPM command/response length
 //
 #define TPMCMDBUFLENGTH             1024
 
@@ -121,7 +121,7 @@ Tpm12TisPcWaitRegisterBits (
 }
 
 /**
-  Get BurstCount by reading the burstCount field of a TIS regiger
+  Get BurstCount by reading the burstCount field of a TIS register
   in the time of default TIS_TIMEOUT_D.
 
   @param[in]  TisReg                Pointer to TIS register.
diff --git a/SecurityPkg/Library/Tpm2CommandLib/Tpm2Miscellaneous.c b/SecurityPkg/Library/Tpm2CommandLib/Tpm2Miscellaneous.c
index 21f3bb5adf..32bff45844 100644
--- a/SecurityPkg/Library/Tpm2CommandLib/Tpm2Miscellaneous.c
+++ b/SecurityPkg/Library/Tpm2CommandLib/Tpm2Miscellaneous.c
@@ -1,5 +1,5 @@
 /** @file
-  Implement TPM2 Miscellanenous related command.
+  Implement TPM2 Miscellaneous related command.
 
 Copyright (c) 2013 - 2016, Intel Corporation. All rights reserved. <BR>
 SPDX-License-Identifier: BSD-2-Clause-Patent
diff --git a/SecurityPkg/Library/Tpm2DeviceLibDTpm/Tpm2Ptp.c b/SecurityPkg/Library/Tpm2DeviceLibDTpm/Tpm2Ptp.c
index b671cef04e..2c73385b6c 100644
--- a/SecurityPkg/Library/Tpm2DeviceLibDTpm/Tpm2Ptp.c
+++ b/SecurityPkg/Library/Tpm2DeviceLibDTpm/Tpm2Ptp.c
@@ -26,7 +26,7 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
 #define PTP_TIMEOUT_MAX             (90000 * 1000)  // 90s
 
 //
-// Max TPM command/reponse length
+// Max TPM command/response length
 //
 #define TPMCMDBUFLENGTH             0x500
 
@@ -290,7 +290,7 @@ PtpCrbTpmCommand (
     DEBUG ((EFI_D_VERBOSE, "\n"));
   );
   //
-  // Check the reponse data header (tag, parasize and returncode)
+  // Check the response data header (tag, parasize and returncode)
   //
   CopyMem (&Data16, BufferOut, sizeof (UINT16));
   // TPM2 should not use this RSP_COMMAND
diff --git a/SecurityPkg/Library/Tpm2DeviceLibDTpm/Tpm2Tis.c b/SecurityPkg/Library/Tpm2DeviceLibDTpm/Tpm2Tis.c
index bbebc94b4d..9a809612b3 100644
--- a/SecurityPkg/Library/Tpm2DeviceLibDTpm/Tpm2Tis.c
+++ b/SecurityPkg/Library/Tpm2DeviceLibDTpm/Tpm2Tis.c
@@ -22,7 +22,7 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
 #define TIS_TIMEOUT_MAX             (90000 * 1000)  // 90s
 
 //
-// Max TPM command/reponse length
+// Max TPM command/response length
 //
 #define TPMCMDBUFLENGTH             0x500
 
@@ -77,7 +77,7 @@ TisPcWaitRegisterBits (
 }
 
 /**
-  Get BurstCount by reading the burstCount field of a TIS regiger
+  Get BurstCount by reading the burstCount field of a TIS register
   in the time of default TIS_TIMEOUT_D.
 
   @param[in]  TisReg                Pointer to TIS register.
@@ -340,7 +340,7 @@ Tpm2TisTpmCommand (
     DEBUG ((EFI_D_VERBOSE, "\n"));
   );
   //
-  // Check the reponse data header (tag,parasize and returncode )
+  // Check the response data header (tag,parasize and returncode )
   //
   CopyMem (&Data16, BufferOut, sizeof (UINT16));
   // TPM2 should not use this RSP_COMMAND
diff --git a/SecurityPkg/Library/TpmCommLib/TisPc.c b/SecurityPkg/Library/TpmCommLib/TisPc.c
index 4a14a2bf81..533a42e53c 100644
--- a/SecurityPkg/Library/TpmCommLib/TisPc.c
+++ b/SecurityPkg/Library/TpmCommLib/TisPc.c
@@ -60,7 +60,7 @@ TisPcWaitRegisterBits (
 }
 
 /**
-  Get BurstCount by reading the burstCount field of a TIS regiger
+  Get BurstCount by reading the burstCount field of a TIS register
   in the time of default TIS_TIMEOUT_D.
 
   @param[in]  TisReg                Pointer to TIS register.