diff --git a/changes/1642.bugfix.md b/changes/1642.bugfix.md
new file mode 100644
index 0000000000..9977766713
--- /dev/null
+++ b/changes/1642.bugfix.md
@@ -0,0 +1 @@
+`Member.__str__` will now return `Member.nickname` if set. `PartialUserImpl.__str__` will now return `PartialUserImpl.global_name` if set.
diff --git a/hikari/guilds.py b/hikari/guilds.py
index 599cab81d3..2673890260 100644
--- a/hikari/guilds.py
+++ b/hikari/guilds.py
@@ -929,7 +929,7 @@ async def edit(
         )
 
     def __str__(self) -> str:
-        return str(self.user)
+        return self.nickname or str(self.user)
 
     def __hash__(self) -> int:
         return hash(self.user)
diff --git a/hikari/users.py b/hikari/users.py
index a993f30f53..5fccb16fe0 100644
--- a/hikari/users.py
+++ b/hikari/users.py
@@ -714,8 +714,11 @@ def mention(self) -> str:
     def __str__(self) -> str:
         if self.username is undefined.UNDEFINED or self.discriminator is undefined.UNDEFINED:
             return f"Partial user ID {self.id}"
-        elif self.discriminator == "0":  # migrated account
-            return self.username
+
+        # migrated account
+        if self.discriminator == "0":
+            return self.global_name or self.username
+
         return f"{self.username}#{self.discriminator}"
 
 
diff --git a/tests/hikari/test_guilds.py b/tests/hikari/test_guilds.py
index 1c07054b0c..67de729b84 100644
--- a/tests/hikari/test_guilds.py
+++ b/tests/hikari/test_guilds.py
@@ -232,8 +232,12 @@ def model(self, mock_user):
         )
 
     def test_str_operator(self, model, mock_user):
+        model.nickname = None
         assert str(model) == str(mock_user)
 
+    def test_str_operator_when_nickname_set(self, model, mock_user):
+        assert str(model) == "davb"
+
     def test_app_property(self, model, mock_user):
         assert model.app is mock_user.app
 
diff --git a/tests/hikari/test_users.py b/tests/hikari/test_users.py
index 681ca54c53..6e9f0b3fe8 100644
--- a/tests/hikari/test_users.py
+++ b/tests/hikari/test_users.py
@@ -325,10 +325,25 @@ def obj(self):
     def test_str_operator(self, obj):
         assert str(obj) == "thomm.o#8637"
 
+    def test_str_operator_when_migrated(self, obj: users.PartialUserImpl):
+        obj.discriminator = "0"
+        assert str(obj) == "thomm.o"
+
+    def test_str_operator_when_migrated_and_global_name_set(self, obj: users.PartialUserImpl):
+        obj.discriminator = "0"
+        obj.global_name = "hello"
+        assert str(obj) == "hello"
+
     def test_str_operator_when_partial(self, obj):
         obj.username = undefined.UNDEFINED
         assert str(obj) == "Partial user ID 123"
 
+    def test_str_operator_when_migrated_and_partial(self, obj):
+        obj.username = undefined.UNDEFINED
+        obj.discriminator = "0"
+        obj.global_name = "0"
+        assert str(obj) == "Partial user ID 123"
+
     def test_mention_property(self, obj):
         assert obj.mention == "<@123>"