diff --git a/src/interfaces/wallet.cpp b/src/interfaces/wallet.cpp
index a2cae2a7a7..82dd8a094b 100644
--- a/src/interfaces/wallet.cpp
+++ b/src/interfaces/wallet.cpp
@@ -212,6 +212,7 @@ class WalletImpl : public Wallet
     }
     std::vector<std::string> getDestValues(const std::string& prefix) override
     {
+        LOCK(m_wallet.cs_wallet);
         return m_wallet.GetDestValues(prefix);
     }
     void lockCoin(const COutPoint& output) override
diff --git a/src/qt/test/addressbooktests.cpp b/src/qt/test/addressbooktests.cpp
index 3e414df1f0..7f5e92ea9f 100644
--- a/src/qt/test/addressbooktests.cpp
+++ b/src/qt/test/addressbooktests.cpp
@@ -95,6 +95,7 @@ void TestAddAddressesToSendBook()
     }
 
     auto check_addbook_size = [&wallet](int expected_size) {
+        LOCK(wallet->cs_wallet);
         QCOMPARE(static_cast<int>(wallet->mapAddressBook.size()), expected_size);
     };
 
diff --git a/src/wallet/rpcdump.cpp b/src/wallet/rpcdump.cpp
index 32c36ceaeb..6fd0e60d57 100644
--- a/src/wallet/rpcdump.cpp
+++ b/src/wallet/rpcdump.cpp
@@ -66,7 +66,7 @@ static std::string DecodeDumpString(const std::string &str) {
     return ret.str();
 }
 
-static bool GetWalletAddressesForKey(CWallet * const pwallet, const CKeyID &keyid, std::string &strAddr, std::string &strLabel)
+static bool GetWalletAddressesForKey(CWallet* const pwallet, const CKeyID& keyid, std::string& strAddr, std::string& strLabel) EXCLUSIVE_LOCKS_REQUIRED(pwallet->cs_wallet)
 {
     bool fLabelFound = false;
     CKey key;
diff --git a/src/wallet/rpcwallet.cpp b/src/wallet/rpcwallet.cpp
index e38ad3a0ba..b9d993dc9c 100644
--- a/src/wallet/rpcwallet.cpp
+++ b/src/wallet/rpcwallet.cpp
@@ -1309,7 +1309,7 @@ static void MaybePushAddress(UniValue & entry, const CTxDestination &dest)
  * @param  filter_ismine  The "is mine" filter flags.
  * @param  filter_label   Optional label string to filter incoming transactions.
  */
-static void ListTransactions(interfaces::Chain::Lock& locked_chain, CWallet* const pwallet, const CWalletTx& wtx, int nMinDepth, bool fLong, UniValue& ret, const isminefilter& filter_ismine, const std::string* filter_label)
+static void ListTransactions(interfaces::Chain::Lock& locked_chain, CWallet* const pwallet, const CWalletTx& wtx, int nMinDepth, bool fLong, UniValue& ret, const isminefilter& filter_ismine, const std::string* filter_label) EXCLUSIVE_LOCKS_REQUIRED(pwallet->cs_wallet)
 {
     CAmount nFee;
     std::list<COutputEntry> listReceived;
diff --git a/src/wallet/wallet.cpp b/src/wallet/wallet.cpp
index bdddcd718b..af93653375 100644
--- a/src/wallet/wallet.cpp
+++ b/src/wallet/wallet.cpp
@@ -3172,7 +3172,7 @@ bool CWallet::SetAddressBook(const CTxDestination& address, const std::string& s
 {
     bool fUpdated = false;
     {
-        LOCK(cs_wallet); // mapAddressBook
+        LOCK(cs_wallet);
         std::map<CTxDestination, CAddressBookData>::iterator mi = mapAddressBook.find(address);
         fUpdated = mi != mapAddressBook.end();
         mapAddressBook[address].name = strName;
@@ -3189,7 +3189,7 @@ bool CWallet::SetAddressBook(const CTxDestination& address, const std::string& s
 bool CWallet::DelAddressBook(const CTxDestination& address)
 {
     {
-        LOCK(cs_wallet); // mapAddressBook
+        LOCK(cs_wallet);
 
         // Delete destdata tuples associated with address
         std::string strAddress = EncodeDestination(address);
@@ -3869,7 +3869,6 @@ bool CWallet::GetDestData(const CTxDestination &dest, const std::string &key, st
 
 std::vector<std::string> CWallet::GetDestValues(const std::string& prefix) const
 {
-    LOCK(cs_wallet);
     std::vector<std::string> values;
     for (const auto& address : mapAddressBook) {
         for (const auto& data : address.second.destdata) {
diff --git a/src/wallet/wallet.h b/src/wallet/wallet.h
index cf3fa0aced..9dde7e1f94 100644
--- a/src/wallet/wallet.h
+++ b/src/wallet/wallet.h
@@ -788,7 +788,7 @@ class CWallet final : public CCryptoKeyStore, public CValidationInterface
     int64_t nOrderPosNext GUARDED_BY(cs_wallet) = 0;
     uint64_t nAccountingEntryNumber = 0;
 
-    std::map<CTxDestination, CAddressBookData> mapAddressBook;
+    std::map<CTxDestination, CAddressBookData> mapAddressBook GUARDED_BY(cs_wallet);
 
     std::set<COutPoint> setLockedCoins GUARDED_BY(cs_wallet);
 
@@ -865,15 +865,15 @@ class CWallet final : public CCryptoKeyStore, public CValidationInterface
     bool LoadCScript(const CScript& redeemScript);
 
     //! Adds a destination data tuple to the store, and saves it to disk
-    bool AddDestData(const CTxDestination &dest, const std::string &key, const std::string &value);
+    bool AddDestData(const CTxDestination& dest, const std::string& key, const std::string& value) EXCLUSIVE_LOCKS_REQUIRED(cs_wallet);
     //! Erases a destination data tuple in the store and on disk
-    bool EraseDestData(const CTxDestination &dest, const std::string &key);
+    bool EraseDestData(const CTxDestination& dest, const std::string& key) EXCLUSIVE_LOCKS_REQUIRED(cs_wallet);
     //! Adds a destination data tuple to the store, without saving it to disk
-    void LoadDestData(const CTxDestination &dest, const std::string &key, const std::string &value);
+    void LoadDestData(const CTxDestination& dest, const std::string& key, const std::string& value) EXCLUSIVE_LOCKS_REQUIRED(cs_wallet);
     //! Look up a destination data tuple in the store, return true if found false otherwise
-    bool GetDestData(const CTxDestination &dest, const std::string &key, std::string *value) const;
+    bool GetDestData(const CTxDestination& dest, const std::string& key, std::string* value) const EXCLUSIVE_LOCKS_REQUIRED(cs_wallet);
     //! Get all destination values matching a prefix.
-    std::vector<std::string> GetDestValues(const std::string& prefix) const;
+    std::vector<std::string> GetDestValues(const std::string& prefix) const EXCLUSIVE_LOCKS_REQUIRED(cs_wallet);
 
     //! Adds a watch-only address to the store, and saves it to disk.
     bool AddWatchOnly(const CScript& dest, int64_t nCreateTime) EXCLUSIVE_LOCKS_REQUIRED(cs_wallet);
@@ -1041,7 +1041,7 @@ class CWallet final : public CCryptoKeyStore, public CValidationInterface
 
     bool DelAddressBook(const CTxDestination& address);
 
-    const std::string& GetLabelName(const CScript& scriptPubKey) const;
+    const std::string& GetLabelName(const CScript& scriptPubKey) const EXCLUSIVE_LOCKS_REQUIRED(cs_wallet);
 
     void GetScriptForMining(std::shared_ptr<CReserveScript> &script);
 
diff --git a/src/wallet/wallettool.cpp b/src/wallet/wallettool.cpp
index 30b0c48eef..628f3fe803 100644
--- a/src/wallet/wallettool.cpp
+++ b/src/wallet/wallettool.cpp
@@ -94,7 +94,6 @@ static std::shared_ptr<CWallet> LoadWallet(const std::string& name, const fs::pa
 
 static void WalletShowInfo(CWallet* wallet_instance)
 {
-    // lock required because of some AssertLockHeld()
     LOCK(wallet_instance->cs_wallet);
 
     fprintf(stdout, "Wallet info\n===========\n");