diff --git a/.changeset/seven-kiwis-run.md b/.changeset/seven-kiwis-run.md
new file mode 100644
index 00000000000..3b56117c469
--- /dev/null
+++ b/.changeset/seven-kiwis-run.md
@@ -0,0 +1,5 @@
+---
+"chainlink": patch
+---
+
+Added custom client error messages for Mantle to capture InsufficientEth and Fatal errors. #added
diff --git a/core/chains/evm/client/errors.go b/core/chains/evm/client/errors.go
index 22fac5f7287..5d684d1d17c 100644
--- a/core/chains/evm/client/errors.go
+++ b/core/chains/evm/client/errors.go
@@ -250,6 +250,11 @@ var zkEvm = ClientErrors{
 	TerminallyStuck: regexp.MustCompile(`(?:: |^)not enough .* counters to continue the execution$`),
 }
 
+var mantle = ClientErrors{
+	InsufficientEth: regexp.MustCompile(`(: |^)'*insufficient funds for gas \* price \+ value`),
+	Fatal:           regexp.MustCompile(`(: |^)'*invalid sender`),
+}
+
 const TerminallyStuckMsg = "transaction terminally stuck"
 
 // Tx.Error messages that are set internally so they are not chain or client specific
@@ -257,7 +262,7 @@ var internal = ClientErrors{
 	TerminallyStuck: regexp.MustCompile(TerminallyStuckMsg),
 }
 
-var clients = []ClientErrors{parity, geth, arbitrum, metis, substrate, avalanche, nethermind, harmony, besu, erigon, klaytn, celo, zkSync, zkEvm, internal}
+var clients = []ClientErrors{parity, geth, arbitrum, metis, substrate, avalanche, nethermind, harmony, besu, erigon, klaytn, celo, zkSync, zkEvm, mantle, internal}
 
 // ClientErrorRegexes returns a map of compiled regexes for each error type
 func ClientErrorRegexes(errsRegex config.ClientErrors) *ClientErrors {
diff --git a/core/chains/evm/client/errors_test.go b/core/chains/evm/client/errors_test.go
index cca54c2a4a9..0d8dddf2a0f 100644
--- a/core/chains/evm/client/errors_test.go
+++ b/core/chains/evm/client/errors_test.go
@@ -214,6 +214,7 @@ func Test_Eth_Errors(t *testing.T) {
 			{"insufficient funds for gas + value. balance: 42719769622667482000, fee: 48098250000000, value: 42719769622667482000", true, "celo"},
 			{"client error insufficient eth", true, "tomlConfig"},
 			{"transaction would cause overdraft", true, "Geth"},
+			{"failed to forward tx to sequencer, please try again. Error message: 'insufficient funds for gas * price + value'", true, "Mantle"},
 		}
 		for _, test := range tests {
 			err = evmclient.NewSendErrorS(test.message)
@@ -379,6 +380,8 @@ func Test_Eth_Errors_Fatal(t *testing.T) {
 		{"Failed to serialize transaction: max priority fee per gas higher than 2^64-1", true, "zkSync"},
 		{"Failed to serialize transaction: oversized data. max: 1000000; actual: 1000000", true, "zkSync"},
 
+		{"failed to forward tx to sequencer, please try again. Error message: 'invalid sender'", true, "Mantle"},
+
 		{"client error fatal", true, "tomlConfig"},
 	}