321 EOD & Search Squadron, 11 EOD Regiment RLC is a unit of the British Army responsible for Explosive Ordnance Disposal and Search duties in Northern Ireland.

It was re-badged as a unit of the Royal Logistic Corps in April 1993, now part of 11 Explosive Ordnance Disposal and Search Regiment RLC.

[1] With its headquarters at Alexander Barracks, Aldergrove near Antrim, the unit covers the entire province of Northern Ireland.

The unit is honoured at the Palace Barracks memorial garden.

[4] Whilst Operation Banner was running, 321 EOD had detachments at the following locations As at Oct 2015, the Sqn is based at Alexander Barracks, Aldergrove and Palace Barracks in Belfast