diff --git a/docker/bifrost/bifrost-base/Dockerfile.j2 b/docker/bifrost/bifrost-base/Dockerfile.j2
index 2596842c73..154e443676 100644
--- a/docker/bifrost/bifrost-base/Dockerfile.j2
+++ b/docker/bifrost/bifrost-base/Dockerfile.j2
@@ -73,7 +73,6 @@ RUN echo " " && \
     -e upper_constraints_file="/requirements/upper-constraints.txt" \
     -e git_branch={{ openstack_branch_slashed }} \
     -e ipa_upstream_release={{ openstack_branch }} \
-    -e enable_inspector=true \
     -e @/tmp/build_arg.yml && \
 {%- if base_package_type == 'deb' %}
     apt-get clean && rm -rf /var/lib/apt/lists/*'
diff --git a/docker/ironic-inspector/Dockerfile.j2 b/docker/ironic-inspector/Dockerfile.j2
deleted file mode 100644
index 29f0dbb679..0000000000
--- a/docker/ironic-inspector/Dockerfile.j2
+++ /dev/null
@@ -1,46 +0,0 @@
-FROM {{ namespace }}/{{ image_prefix }}openstack-base:{{ tag }}
-{% block labels %}
-LABEL maintainer="{{ maintainer }}" name="{{ image_name }}" build-date="{{ build_date }}"
-{% endblock %}
-
-{% block ironic_inspector_header %}{% endblock %}
-
-{% import "macros.j2" as macros with context %}
-
-{{ macros.configure_user(name='ironic-inspector') }}
-
-{% if base_package_type == 'rpm' %}
-    {% set ironic_inspector_packages = ['iptables'] %}
-{% elif base_package_type == 'deb' %}
-    {% set ironic_inspector_packages = ['iptables'] %}
-{% endif %}
-
-{{ macros.install_packages(ironic_inspector_packages | customizable("packages")) }}
-
-ADD ironic-inspector-archive /ironic-inspector-source
-ADD ironic_inspector_sudoers /etc/sudoers.d/kolla_ironic_inspector_sudoers
-
-{% set ironic_inspector_pip_packages = [
-    '/ironic-inspector'
-] %}
-
-COPY extend_start.sh /usr/local/bin/kolla_extend_start
-
-RUN ln -s ironic-inspector-source/* ironic-inspector \
-    && {{ macros.install_pip(ironic_inspector_pip_packages | customizable("pip_packages")) }} \
-    && mkdir -p /etc/ironic-inspector \
-    && cp /ironic-inspector/rootwrap.conf /etc/ironic-inspector/ \
-    && cp -r /ironic-inspector/rootwrap.d/ /etc/ironic-inspector/ \
-    && sed -i 's|^exec_dirs.*|exec_dirs=/var/lib/kolla/venv/bin,/sbin,/usr/sbin,/bin,/usr/bin,/usr/local/bin,/usr/local/sbin|g' /etc/ironic-inspector/rootwrap.conf \
-    && chmod 750 /etc/sudoers.d \
-    && chmod 440 /etc/sudoers.d/kolla_ironic_inspector_sudoers \
-    && chmod 644 /usr/local/bin/kolla_extend_start \
-    && mkdir -p /var/lib/ironic-inspector/dhcp-hostsdir \
-    && chown -R ironic-inspector: /var/lib/ironic-inspector
-
-{{ macros.kolla_patch_sources() }}
-
-{% block ironic_inspector_footer %}{% endblock %}
-{% block footer %}{% endblock %}
-
-USER ironic-inspector
diff --git a/docker/ironic-inspector/extend_start.sh b/docker/ironic-inspector/extend_start.sh
deleted file mode 100644
index 2582b017a3..0000000000
--- a/docker/ironic-inspector/extend_start.sh
+++ /dev/null
@@ -1,17 +0,0 @@
-#!/bin/bash
-
-LOG_PATH=/var/log/kolla/ironic-inspector
-
-if [[ ! -d "${LOG_PATH}" ]]; then
-    mkdir -p "${LOG_PATH}"
-fi
-if [[ $(stat -c %a "${LOG_PATH}") != "755" ]]; then
-    chmod 755 "${LOG_PATH}"
-fi
-
-# Bootstrap and exit if KOLLA_BOOTSTRAP variable is set. This catches all cases
-# of the KOLLA_BOOTSTRAP variable being set, including empty.
-if [[ "${!KOLLA_BOOTSTRAP[@]}" ]]; then
-    ironic-inspector-dbsync --config-file /etc/ironic-inspector/inspector.conf upgrade
-    exit 0
-fi
diff --git a/docker/ironic-inspector/ironic_inspector_sudoers b/docker/ironic-inspector/ironic_inspector_sudoers
deleted file mode 100644
index 3958468207..0000000000
--- a/docker/ironic-inspector/ironic_inspector_sudoers
+++ /dev/null
@@ -1 +0,0 @@
-ironic-inspector ALL=(root) NOPASSWD: /var/lib/kolla/venv/bin/ironic-inspector-rootwrap /etc/ironic-inspector/rootwrap.conf *
diff --git a/kolla/common/sources.py b/kolla/common/sources.py
index 9449c060f1..daf17ed38f 100644
--- a/kolla/common/sources.py
+++ b/kolla/common/sources.py
@@ -151,10 +151,6 @@ SOURCES = {
         'type': 'url',
         'location': ('$tarballs_base/openstack/ironic/'
                      'ironic-${openstack_branch}.tar.gz')},
-    'ironic-inspector': {
-        'type': 'url',
-        'location': ('$tarballs_base/openstack/ironic-inspector/'
-                     'ironic-inspector-${openstack_branch}.tar.gz')},
     'ironic-conductor-plugin-prometheus-exporter': {
         'type': 'url',
         'location': (
diff --git a/kolla/common/users.py b/kolla/common/users.py
index 9468396e42..95aefa4b6e 100644
--- a/kolla/common/users.py
+++ b/kolla/common/users.py
@@ -221,7 +221,7 @@ USERS = {
         'uid': 42460,
         'gid': 42460,
     },
-    'ironic-inspector-user': {
+    'ironic-inspector-user': {  # unused user (ironic-inspector dropped)
         'uid': 42461,
         'gid': 42461,
     },
diff --git a/releasenotes/notes/drop-ironic-inspector-093cc36e06787168.yaml b/releasenotes/notes/drop-ironic-inspector-093cc36e06787168.yaml
new file mode 100644
index 0000000000..4aa76d6d86
--- /dev/null
+++ b/releasenotes/notes/drop-ironic-inspector-093cc36e06787168.yaml
@@ -0,0 +1,5 @@
+---
+upgrade:
+  - |
+    Removes support for building ``ironic-inspector`` images following
+    retirement in ``Ironic`` project.
diff --git a/roles/kolla-build-config/defaults/main.yml b/roles/kolla-build-config/defaults/main.yml
index 780ac07c8a..e8c6f7841f 100644
--- a/roles/kolla-build-config/defaults/main.yml
+++ b/roles/kolla-build-config/defaults/main.yml
@@ -26,7 +26,6 @@ kolla_build_sources:
   openstack/gnocchi: gnocchi-base
   openstack/heat: heat-base
   openstack/ironic: ironic-base
-  openstack/ironic-inspector: ironic-inspector
   openstack/keystone: keystone-base
   openstack/kuryr: kuryr-base
   openstack/kuryr-libnetwork: kuryr-libnetwork