The Laurin & Klement O was an automobile produced by Laurin & Klement between 1913 and 1915. The car was available as a phaeton, sedan, coupe, landulet a sports car.

The engine was a front-mounted 2614 cm³ inline four-cylinder unit with side-valves with power being sent to the rear wheels. The maximum power output was 22 kW (30 hp) and the wheelbase was 3150 mm. The car could go 65-70 km/h.

A total of 100 units were produced.

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