diff --git a/src/rpc/client.cpp b/src/rpc/client.cpp
--- a/src/rpc/client.cpp
+++ b/src/rpc/client.cpp
@@ -20,7 +20,7 @@
 };
 
 /**
- * Specifiy a (method, idx, name) here if the argument is a non-string RPC
+ * Specify a (method, idx, name) here if the argument is a non-string RPC
  * argument and needs to be converted from JSON.
  *
  * @note Parameter indexes start from 0.
diff --git a/src/rpc/misc.cpp b/src/rpc/misc.cpp
--- a/src/rpc/misc.cpp
+++ b/src/rpc/misc.cpp
@@ -530,7 +530,7 @@
     // this could have an effect on mempool time-based eviction, as well as
     // IsInitialBlockDownload().
     // TODO: figure out the right way to synchronize around mocktime, and
-    // ensure all callsites of GetTime() are accessing this safely.
+    // ensure all call sites of GetTime() are accessing this safely.
     LOCK(cs_main);
 
     RPCTypeCheck(request.params, {UniValue::VNUM});
diff --git a/src/utiltime.h b/src/utiltime.h
--- a/src/utiltime.h
+++ b/src/utiltime.h
@@ -11,7 +11,7 @@
 
 /**
  * GetTimeMicros() and GetTimeMillis() both return the system time, but in
- * different units. GetTime() returns the sytem time in seconds, but also
+ * different units. GetTime() returns the system time in seconds, but also
  * supports mocktime, where the time can be specified by the user, eg for
  * testing (eg with the setmocktime rpc, or -mocktime argument).
  *
diff --git a/src/validation.cpp b/src/validation.cpp
--- a/src/validation.cpp
+++ b/src/validation.cpp
@@ -1235,8 +1235,8 @@
         pvChecks->reserve(tx.vin.size());
     }
 
-    // Skip script verification when connecting blocks under the assumedvalid
-    // block. Assuming the assumedvalid block is valid this is safe because
+    // Skip script verification when connecting blocks under the assumevalid
+    // block. Assuming the assumevalid block is valid this is safe because
     // block merkle hashes are still computed and checked, of course, if an
     // assumed valid block is invalid due to false scriptSigs this optimization
     // would allow an invalid chain to be accepted.
@@ -1764,7 +1764,7 @@
                 pindexBestHeader->nChainWork >= nMinimumChainWork) {
                 // This block is a member of the assumed verified chain and an
                 // ancestor of the best header. The equivalent time check
-                // discourages hashpower from extorting the network via DOS
+                // discourages hash power from extorting the network via DOS
                 // attack into accepting an invalid block through telling users
                 // they must manually set assumevalid. Requiring a software
                 // change or burying the invalid block, regardless of the
diff --git a/src/wallet/wallet.cpp b/src/wallet/wallet.cpp
--- a/src/wallet/wallet.cpp
+++ b/src/wallet/wallet.cpp
@@ -1046,7 +1046,7 @@
  * TODO: One exception to this is that the abandoned state is cleared under the
  * assumption that any further notification of a transaction that was considered
  * abandoned is an indication that it is not safe to be considered abandoned.
- * Abandoned state should probably be more carefuly tracked via different
+ * Abandoned state should probably be more carefully tracked via different
  * posInBlock signals or by checking mempool presence when necessary.
  */
 bool CWallet::AddToWalletIfInvolvingMe(const CTransactionRef &ptx,