Formula Pacific was a motor racing category which was used in the Pacific Basin area from 1977 to 1982. It specified a single-seat, open-wheeler chassis powered by a production-based four-cylinder engine of under 1600cc capacity. The formula was based on Formula Atlantic, with provision made for the use of Japanese engines. The category was superseded in 1983 by Formula Mondial, which was devised by the FIA to replace both Formula Atlantic and Formula Pacific.

Formula Atlantic is a specification of open-wheel racing car developed in the 1970s. It was used in professional racing through the IMSA Atlantic Championship until 2009 and is currently primarily used in amateur racing through Sports Car Club of America Formula Atlantic.