The genus name Rossia may refer to:

  • Animalia:
    • Rossia Owen, 1834 (Cephalapoda, Sepiolidae); valid name by precedence
    • Rossia Bonaparte, 1838, junior homonym = synonym of Rhodostethia MacGillivray, 1842 (Aves, Laridae)
    • Rossia Theobald, 1902, junior homonym (Diptera, Culicidae)
    • Rossia Anderson, 1992, junior homonym = replaced by Arossella Anderson, 1993 (Cirripedia, Pyrgomatidae)
  • Chromista:
    • Rossia M.Voigt, 1960 (Bacillariophyceae, Sellaphoraceae)