Carl-Gustaf Rossby (1898–1957) was a Swedish-born American meteorologist.
Rossby may also refer to:
Rossby (crater), impact crater on Mars Rossby wave, a natural phenomenon in the atmosphere and oceans of planets Rossby number, a dimensionless number used in describing fluid flow. The Rossby number is the ratio of inertial Rossby parameter, used in geophysics and meteorology Rossby whistle, oscillation of sea-level and bottom pressure in the Caribbean Sea