diff --git a/.changeset/bright-wombats-try.md b/.changeset/bright-wombats-try.md
new file mode 100644
index 0000000000000..f0a8016810e5d
--- /dev/null
+++ b/.changeset/bright-wombats-try.md
@@ -0,0 +1,5 @@
+---
+'@mysten/sui.js': patch
+---
+
+Add support for more JSON RPC error codes
diff --git a/sdk/typescript/src/client/errors.ts b/sdk/typescript/src/client/errors.ts
index bd1e68e37e070..a13b59fd1b839 100644
--- a/sdk/typescript/src/client/errors.ts
+++ b/sdk/typescript/src/client/errors.ts
@@ -3,10 +3,21 @@
 
 const CODE_TO_ERROR_TYPE: Record<number, string> = {
 	'-32700': 'ParseError',
+	'-32701': 'OversizedRequest',
+	'-32702': 'OversizedResponse',
 	'-32600': 'InvalidRequest',
 	'-32601': 'MethodNotFound',
 	'-32602': 'InvalidParams',
 	'-32603': 'InternalError',
+	'-32604': 'ServerBusy',
+	'-32000': 'CallExecutionFailed',
+	'-32001': 'UnknownError',
+	'-32003': 'SubscriptionClosed',
+	'-32004': 'SubscriptionClosedWithError',
+	'-32005': 'BatchesNotSupported',
+	'-32006': 'TooManySubscriptions',
+	'-32050': 'TransientError',
+	'-32002': 'TransactionExecutionClientError',
 };
 
 export class SuiHTTPTransportError extends Error {}