Uki Workboat Oy (Finnish: Uudenkaupungin Työvene Oy) is a Finnish shipyard located in Uusikaupunki on the Western coast of Finland. The company specializes in small and medium-sized vessels for professional use, ranging from aluminium-hulled workboats to steel-hulled multipurpose ships and road ferries. The facilities consist of one slipway and production halls where boats up to a length of can be manufactured indoors.
Most of the shipyard's newbuildings are one-off products, but smaller boats have also been built in series of up to 18 vessels. , Uki Workboat has delivered over 220 vessels with the largest being the Finnish pollution control vessel Louhi, which was delivered in 2011. The company also built the presidential yacht of the President of Finland, Kultaranta VIII.
Whereas the Finnish name of the company uses the full name of the city where the shipyard is located, the English-language name contains the commonly used shorter nickname Uki.