Tomas may refer to:
People Tomás (given name), a Spanish, Portuguese, and Gaelic given name Tomas (given name), a Swedish, Dutch, and Lithuanian given name Tomáš, a Czech and Slovak given name Tomàs, a Catalan given name and surname Tomas (surname), a French and Croatian surname Tomás (surname), a Spanish and Portuguese surname Tomaš (surname), a Croatian surname Tomas., taxonomic author abbreviation of Ruggero Tomaselli (1920–1982), Italian botanist
Places Tomaš, Croatia, a village near Bjelovar Tomaș River, a tributary of the Gârbăul Mare River in Romania Tomas District, Peru
Other uses Tropical Storm Tomas (disambiguation), numerous storms Tomas (novel), 2009 novel by James Palumbo Convento de Santo Tomás (Madrid)
See also Thomas (disambiguation) Tom (disambiguation)