diff --git a/test/functional/rpc_fundrawtransaction.py b/test/functional/rpc_fundrawtransaction.py
--- a/test/functional/rpc_fundrawtransaction.py
+++ b/test/functional/rpc_fundrawtransaction.py
@@ -452,7 +452,7 @@
         mSigObj = self.nodes[2].addmultisigaddress(
             2, [addr1Obj['pubkey'], addr2Obj['pubkey']])['address']
 
-        # send 1.2 BTC to msig addr
+        # send 1.2 BCH to msig addr
         txId = self.nodes[0].sendtoaddress(mSigObj, 1.2)
         self.sync_all()
         self.nodes[1].generate(1)
diff --git a/test/functional/rpc_rawtransaction.py b/test/functional/rpc_rawtransaction.py
--- a/test/functional/rpc_rawtransaction.py
+++ b/test/functional/rpc_rawtransaction.py
@@ -255,7 +255,7 @@
         # use balance deltas instead of absolute values
         bal = self.nodes[2].getbalance()
 
-        # send 1.2 BTC to msig adr
+        # send 1.2 BCH to msig adr
         txId = self.nodes[0].sendtoaddress(mSigObj, 1.2)
         self.sync_all()
         self.nodes[0].generate(1)
diff --git a/test/functional/wallet_abandonconflict.py b/test/functional/wallet_abandonconflict.py
--- a/test/functional/wallet_abandonconflict.py
+++ b/test/functional/wallet_abandonconflict.py
@@ -188,13 +188,13 @@
         connect_nodes(self.nodes[0], self.nodes[1])
         sync_blocks(self.nodes)
 
-        # Verify that B and C's 10 BTC outputs are available for spending again because AB1 is now conflicted
+        # Verify that B and C's 10 BCH outputs are available for spending again because AB1 is now conflicted
         newbalance = self.nodes[0].getbalance()
         assert_equal(newbalance, balance + Decimal("20"))
         balance = newbalance
 
         # There is currently a minor bug around this and so this test doesn't work.  See Issue #7315
-        # Invalidate the block with the double spend and B's 10 BTC output should no longer be available
+        # Invalidate the block with the double spend and B's 10 BCH output should no longer be available
         # Don't think C's should either
         self.nodes[0].invalidateblock(self.nodes[0].getbestblockhash())
         newbalance = self.nodes[0].getbalance()
diff --git a/test/functional/wallet_basic.py b/test/functional/wallet_basic.py
--- a/test/functional/wallet_basic.py
+++ b/test/functional/wallet_basic.py
@@ -80,7 +80,7 @@
             txid=confirmed_txid, n=confirmed_index, include_mempool=True)
         assert_equal(txout['value'], 50)
 
-        # Send 21 BTC from 0 to 2 using sendtoaddress call.
+        # Send 21 BCH from 0 to 2 using sendtoaddress call.
         # Locked memory should use at least 32 bytes to sign each transaction
         self.log.info("test getmemoryinfo")
         memory_before = self.nodes[0].getmemoryinfo()
@@ -164,7 +164,7 @@
         assert_equal(self.nodes[2].getbalance(), 94)
         assert_equal(self.nodes[2].getbalance("from1"), 94 - 21)
 
-        # Send 10 BTC normal
+        # Send 10 BCH normal
         old_balance = self.nodes[2].getbalance()
         address = self.nodes[0].getnewaddress("test")
         fee_per_byte = Decimal('0.001') / 1000
@@ -177,7 +177,7 @@
                                            fee_per_byte, ctx.billable_size())
         assert_equal(self.nodes[0].getbalance(), Decimal('10'))
 
-        # Send 10 BTC with subtract fee from amount
+        # Send 10 BCH with subtract fee from amount
         txid = self.nodes[2].sendtoaddress(address, 10, "", "", True)
         self.nodes[2].generate(1)
         self.sync_all([self.nodes[0:3]])
@@ -186,7 +186,7 @@
         node_0_bal = self.check_fee_amount(self.nodes[0].getbalance(), Decimal(
             '20'), fee_per_byte, count_bytes(self.nodes[2].getrawtransaction(txid)))
 
-        # Sendmany 10 BTC
+        # Sendmany 10 BCH
         txid = self.nodes[2].sendmany('from1', {address: 10}, 0, "", [])
         self.nodes[2].generate(1)
         self.sync_all([self.nodes[0:3]])
@@ -196,7 +196,7 @@
         ), node_2_bal - Decimal('10'), fee_per_byte, ctx.billable_size())
         assert_equal(self.nodes[0].getbalance(), node_0_bal)
 
-        # Sendmany 10 BTC with subtract fee from amount
+        # Sendmany 10 BCH with subtract fee from amount
         txid = self.nodes[2].sendmany('from1', {address: 10}, 0, "", [address])
         self.nodes[2].generate(1)
         self.sync_all([self.nodes[0:3]])
diff --git a/test/functional/wallet_import_rescan.py b/test/functional/wallet_import_rescan.py
--- a/test/functional/wallet_import_rescan.py
+++ b/test/functional/wallet_import_rescan.py
@@ -7,12 +7,12 @@
 importmulti RPCs with different types of keys and rescan options.
 
 In the first part of the test, node 0 creates an address for each type of
-import RPC call and node 0 sends BTC to it. Then other nodes import the
+import RPC call and node 0 sends BCH to it. Then other nodes import the
 addresses, and the test makes listtransactions and getbalance calls to confirm
 that the importing node either did or did not execute rescans picking up the
 send transactions.
 
-In the second part of the test, node 0 sends more BTC to each address, and the
+In the second part of the test, node 0 sends more BCH to each address, and the
 test makes more listtransactions and getbalance calls to confirm that the
 importing nodes pick up the new transactions regardless of whether rescans
 happened previously.
diff --git a/test/functional/wallet_txn_clone.py b/test/functional/wallet_txn_clone.py
--- a/test/functional/wallet_txn_clone.py
+++ b/test/functional/wallet_txn_clone.py
@@ -31,7 +31,7 @@
     def run_test(self):
         output_type = "legacy"
 
-        # All nodes should start with 1,250 BTC:
+        # All nodes should start with 1,250 BCH:
         starting_balance = 1250
         for i in range(4):
             assert_equal(self.nodes[i].getbalance(), starting_balance)
@@ -71,7 +71,7 @@
 
         # createrawtransaction randomizes the order of its outputs, so swap them if necessary.
         # output 0 is at version+#inputs+input+sigstub+sequence+#outputs
-        # 40 BTC serialized is 00286bee00000000
+        # 40 BCH serialized is 00286bee00000000
         pos0 = 2 * (4 + 1 + 36 + 1 + 4 + 1)
         hex40 = "00286bee00000000"
         output_len = 16 + 2 + 2 * \
@@ -146,7 +146,7 @@
         assert_equal(tx1_clone["confirmations"], 2)
         assert_equal(tx2["confirmations"], 1)
 
-        # Check node0's total balance; should be same as before the clone, + 100 BTC for 2 matured,
+        # Check node0's total balance; should be same as before the clone, + 100 BCH for 2 matured,
         # less possible orphaned matured subsidy
         expected += 100
         if (self.options.mine_block):
diff --git a/test/functional/wallet_txn_doublespend.py b/test/functional/wallet_txn_doublespend.py
--- a/test/functional/wallet_txn_doublespend.py
+++ b/test/functional/wallet_txn_doublespend.py
@@ -31,7 +31,7 @@
         disconnect_nodes(self.nodes[2], self.nodes[1])
 
     def run_test(self):
-        # All nodes should start with 1,250 BTC:
+        # All nodes should start with 1,250 BCH:
         starting_balance = 1250
         for i in range(4):
             assert_equal(self.nodes[i].getbalance(), starting_balance)
@@ -53,7 +53,7 @@
         # Coins are sent to node1_address
         node1_address = self.nodes[1].getnewaddress("from0")
 
-        # First: use raw transaction API to send 1240 BTC to node1_address,
+        # First: use raw transaction API to send 1240 BCH to node1_address,
         # but don't broadcast:
         doublespend_fee = Decimal('-.02')
         rawtx_input_0 = {}
@@ -71,7 +71,7 @@
         doublespend = self.nodes[0].signrawtransactionwithwallet(rawtx)
         assert_equal(doublespend["complete"], True)
 
-        # Create two spends using 1 50 BTC coin each
+        # Create two spends using 1 50 BCH coin each
         txid1 = self.nodes[0].sendfrom("foo", node1_address, 40, 0)
         txid2 = self.nodes[0].sendfrom("bar", node1_address, 20, 0)