The NVI F.K.33 was an airliner built in the Netherlands in 1925 for use by KLM for night flying.

The F.K.33 was a largely conventional high-wing, strut-braced monoplane with seating for ten passengers in an enclosed cabin.

KLM successfully operated the type for two years on its Amsterdam-London-Paris-Malmö route, but doing an increasing amount of business with Fokker, did not purchase further aircraft from NVI.

The F.K.33 was eventually sold to German airline Aero, but after two accidents within months of purchasing it, they returned it claiming poor workmanship.

It was sold again in 1928, to Baumer-Aero, who replaced the Armstrong-Siddeley engines with Junkers L5s and the boarding lights with loudspeakers.