663 Squadron (Polish: 663 Polski Szwadron Powietrznych Punktów Obserwacyjnych) was an air observation post (AOP) unit, manned with Polish Army personnel, which was officially formed in Italy on 14 August 1944.

The squadron was officially formed at San Basilio in Italy on 14 August 1944[1] as 663 Polski Szwadron Powietrznych Punktów Obserwacyjnych.

The squadron's primary role was to observe enemy ground targets and to help direct artillery fire on them.

Auster AOP IV and V "spotter" aircraft were flown in the unit's close support operations.

663 flew very low-level 'spotting' sorties in co-operation with Territorial Army artillery units, often based for the weekend in a friendly farmers field – for example near Tarporley, Cheshire.

[7] The squadron disbanded on 10 March 1957, at the same time as all other Royal Auxiliary Air Force flying units.

In recent years it has replaced its Westland Gazelles with Westland-assembled Boeing AH-64 Apache attack helicopters.