The Tjeld class was a class of twenty fast patrol boats designed and built for the Royal Norwegian Navy in the late 1950s. They were used as torpedo boats in Norway where this type of vessel were called MTBs or motor torpedo boats (motortorpedobåt). They remained in service until the late 1970s, when they were placed in reserve; all were stricken by 1995.

The Nasty class of fast patrol boats were a set of 20 vessels built for the United States Navy to a Norwegian design and purchased in the 1960s for covert operations during the Vietnam War. Following the conflict they remained in service until the early 1980s.