diff --git a/changelog.d/3320.added.md b/changelog.d/3320.added.md
new file mode 100644
index 0000000000..66ea73cd24
--- /dev/null
+++ b/changelog.d/3320.added.md
@@ -0,0 +1 @@
+Add cronjob for populating database with OUI data
diff --git a/doc/reference/backend-processes.rst b/doc/reference/backend-processes.rst
index c9c94c944b..d269f61ab8 100644
--- a/doc/reference/backend-processes.rst
+++ b/doc/reference/backend-processes.rst
@@ -25,6 +25,7 @@ relevant section in this document:
 - `logengine`_
 - `mactrace`_
 - `maintengine`_
+- `navoui`_
 - `navstats`_
 - `netbiostracker`_
 - `pping`_
@@ -215,6 +216,25 @@ appropriate maintenance events for individual devices and services on NAV's
 :Logs:
   :file:`maintengine.log`
 
+
+navoui
+------
+
+Periodically updates the database with Organizationally Unique Identifiers (OUIs)
+and their corresponding vendors. This enables NAV to display the vendor name
+of a device based on its MAC address, helping to identify whether a device is,
+for example, from Juniper or Cisco.
+
+:Dependencies:
+  None
+:Run mode:
+  cron
+:Configuration:
+  None
+:Logs:
+  Logs to STDERR.
+
+
 navstats
 --------
 
diff --git a/python/nav/etc/cron.d/navoui b/python/nav/etc/cron.d/navoui
new file mode 100644
index 0000000000..28e2950e73
--- /dev/null
+++ b/python/nav/etc/cron.d/navoui
@@ -0,0 +1,2 @@
+## info: Update the database with OUIs and their respective vendors
+0 10 * * * navoui