Foam is a substance that is formed by trapping gas bubbles in a liquid or solid.
Foam may also refer to:
Military Flag officer Attached Middle East, a former major command of the Royal Navy , a United States Navy trawler and minesweeper in commission from 1918 to 1919
Organizations Foam Fotografiemuseum Amsterdam, known as Foam, a photography museum in Amsterdam
Other uses Foam (culinary), a modern food preparation and presentation technique Foam (film), 2020 short film Foam hand, a sports paraphernalia item OpenFOAM, an open-source finite volume partial differential equation solver used in fluid dynamics applications Foam, the schooner that took the 1st Marquess of Dufferin and others on the 1856 voyage that inspired the book, Letters from High Latitudes First Office Action on the Merits, a form of office action in United States patent law Free Open Access Medical education, sometimes called FOAMed, a worldwide movement to share medical knowledge and continuing education
See also Foamer, a derogatory name for people interested in trains and rail transport systems.
Foamy (disambiguation)