diff --git a/ansible_mitogen/transport_config.py b/ansible_mitogen/transport_config.py
index c9aa9860..7af4dc55 100644
--- a/ansible_mitogen/transport_config.py
+++ b/ansible_mitogen/transport_config.py
@@ -456,8 +456,8 @@ class MitogenViaSpec(Spec):
 
     def remote_user(self):
         return (
-            self._host_vars.get('ansible_user') or
             self._host_vars.get('ansible_ssh_user') or
+            self._host_vars.get('ansible_user') or
             C.DEFAULT_REMOTE_USER
         )
 
diff --git a/tests/ansible/hosts/transport_config.hosts b/tests/ansible/hosts/transport_config.hosts
index 18cac116..ab83c65d 100644
--- a/tests/ansible/hosts/transport_config.hosts
+++ b/tests/ansible/hosts/transport_config.hosts
@@ -18,4 +18,9 @@ tc-remote-addr-explicit-ssh ansible_ssh_host=ansi.ssh.host
 tc-remote-addr-explicit-host ansible_host=ansi.host
 tc-remote-addr-explicit-both ansible_ssh_host=a.b.c ansible_host=b.c.d
 
+# remote_addr()
+tc-remote-user-unset  # defaults to C.DEFAULT_REMOTE_USER
+tc-remote-user-explicit-ssh  ansible_ssh_user=ansi-ssh-user
+tc-remote-user-explicit-user ansible_user=ansi-user
+tc-remote-user-explicit-both ansible_user=a.b.c ansible_ssh_user=c.b.a
 
diff --git a/tests/ansible/integration/transport_config/all.yml b/tests/ansible/integration/transport_config/all.yml
index ae86bb18..618e72e3 100644
--- a/tests/ansible/integration/transport_config/all.yml
+++ b/tests/ansible/integration/transport_config/all.yml
@@ -1,3 +1,4 @@
 - include: python_path.yml
 - include: remote_addr.yml
+- include: remote_user.yml
 - include: transport.yml
diff --git a/tests/ansible/integration/transport_config/remote_user.yml b/tests/ansible/integration/transport_config/remote_user.yml
new file mode 100644
index 00000000..b873fcbe
--- /dev/null
+++ b/tests/ansible/integration/transport_config/remote_user.yml
@@ -0,0 +1,96 @@
+
+# Each case is followed by mitogen_via= case to test hostvars method.
+
+
+# When no ansible_user/ansible_ssh_user= is set, username is
+# C.DEFAULT_REMOTE_USER.
+- name: integration/transport_config/remote_user.yml
+  hosts: tc-remote-user-unset
+  tasks:
+  - include: ../_mitogen_only.yml
+  - {mitogen_get_stack: {}, register: out}
+  - assert_equal:
+      left: out.result[0].kwargs.username
+      # We set DEFAULT_REMOTE_USER in our ansible.cfg
+      right: "ansible-cfg-remote-user"
+
+- hosts: tc-remote-user-unset
+  vars: {mitogen_via: tc-remote-user-explicit-ssh}
+  tasks:
+  - include: ../_mitogen_only.yml
+  - {mitogen_get_stack: {}, register: out}
+  - assert_equal:
+      left: out.result[0].kwargs.username
+      right: "ansi-ssh-user"
+  - assert_equal:
+      left: out.result[1].kwargs.username
+      right: "ansible-cfg-remote-user"
+
+
+# ansible_ssh_user=
+
+- hosts: tc-remote-user-explicit-ssh
+  tasks:
+  - include: ../_mitogen_only.yml
+  - {mitogen_get_stack: {}, register: out}
+  - assert_equal:
+      left: out.result[0].kwargs.username
+      right: "ansi-ssh-user"
+
+- hosts: tc-remote-user-explicit-ssh
+  vars: {mitogen_via: tc-remote-user-unset}
+  tasks:
+  - include: ../_mitogen_only.yml
+  - {mitogen_get_stack: {}, register: out}
+  - assert_equal:
+      left: out.result[0].kwargs.username
+      right: "ansible-cfg-remote-user"
+  - assert_equal:
+      left: out.result[1].kwargs.username
+      right: "ansi-ssh-user"
+
+
+# ansible_user=
+
+- hosts: tc-remote-user-explicit-user
+  tasks:
+  - include: ../_mitogen_only.yml
+  - {mitogen_get_stack: {}, register: out}
+  - assert_equal:
+      left: out.result[0].kwargs.username
+      right: "ansi-user"
+
+- hosts: tc-remote-user-explicit-host
+  vars: {mitogen_via: tc-remote-user-unset}
+  tasks:
+  - include: ../_mitogen_only.yml
+  - {mitogen_get_stack: {}, register: out}
+  - assert_equal:
+      left: out.result[0].kwargs.username
+      right: "ansible-cfg-remote-user"
+  - assert_equal:
+      left: out.result[1].kwargs.username
+      right: "ansi-user"
+
+
+# both; ansible_ssh_user= takes precedence according to play_context.py.
+
+- hosts: tc-remote-user-explicit-both
+  tasks:
+  - include: ../_mitogen_only.yml
+  - {mitogen_get_stack: {}, register: out}
+  - assert_equal:
+      left: out.result[0].kwargs.username
+      right: "c.b.a"
+
+- hosts: tc-remote-user-explicit-both
+  vars: {mitogen_via: tc-remote-user-unset}
+  tasks:
+  - include: ../_mitogen_only.yml
+  - {mitogen_get_stack: {}, register: out}
+  - assert_equal:
+      left: out.result[0].kwargs.username
+      right: "ansible-cfg-remote-user"
+  - assert_equal:
+      left: out.result[1].kwargs.username
+      right: "c.b.a"