Odense Steel Shipyard (Danish: Odense Staalskibsværft) was a Danish shipyard company located in Odense. It was best known for building container ships for its parent group, A.P. Moller – Maersk Group, including the Mærsk E class in 2006 which at the time were the biggest container ships in the world. The global financial crisis led to Maersk announcing its closure in 2009 and the last new ship was delivered in January 2012.

The first yard was opened in 1918–1919 by the A.P. Møller company. A new yard with bigger and better facilities was constructed 1957–1959 on a new site located in Munkebo a few kilometres outside Odense proper.^{[citation needed]} Odense Steel Shipyard was the largest yard within the Odense Steel Shipyard Group, which also consisted of two yards and an engineering company, all situated in the Baltic. The yard was known for designing and building innovative vessels that applied the newest technology in design and equipment.

Since 1996 the Yard built some of the world's largest container ships; including the Mærsk E-class with a nominal capacity of 15,550 TEU (originally declared as 11,000 TEU), the highest equivalent number of any vessel as of today.^[2] However, Maersk chose Daewoo to build its latest and largest design, the Triple E class with a nominal capacity of 18,000 TEU, as the Asian shipyard was more competitive.^[3]

The original shipyard remained in operation until 1966, when all operations were transferred to the new site. Unlike the modern shipyard, the old yard produced civilian and merchant vessels only. Its first completed ship was cargo steamship Robert Mærsk, completed in 1920. Its last production was Yard No. 177, the bulk carrier Laura Mærsk.^[4]

After the closure of the yard in 2012, the site has been transformed to an industrial park housing a large number of companies within the offshore sector; the Lindoe Offshore Renewables Centre. Most companies work with production, storage and discharge of large components for offshore and heavy industries. The area of more than 1,000,000 square metres (11,000,000 sq ft), of which 166,000 square metres (1,790,000 sq ft) is under roof, combined with the gantry crane and the harbour area makes it ideal for handling heavy industry.^[7][8]

In 2016 elements of the yard Odense Maritime Technology (OMT ) were proposing the Iver Huitfeldt-class frigates for the Procurement programme of the Royal Australian Navy's frigates, but built in Australia.^[9]