Lamport and Holt was a UK merchant shipping line. It was founded as a partnership in 1845, reconstituted as a limited company in 1911 and ceased trading in 1991. From 1845 until 1975 Lamport and Holt was headquartered in Liverpool. The founders of Booth Line and Blue Funnel Line had family links with the original partners in Lamport and Holt, and worked for them before founding their own steamship lines in the 1860s. From 1932 Liverpool City Council authorised the company to fly the city's civic flag when in port. It is the only shipping company to have been granted this privilege.