Brainin (Брайнин, also Brainen, Brajnin, Braynen, Breinin) is a Russian-Jewish surname. Notable people with the surname include:
Boris Brainin (Sepp Österreicher, 1905-1996), Austrian poet and translator
Danny Brainin (?-?), film actor (Xtro, Yentl, Street Smart)
David Brainin (1905-1942), French painter and dancer, died in Auschwitz
Elisabeth Brainin (1949), Austrian psychoanalyst and scientific writer
Fritz (Frederick) Brainin (1913-1992), Austrian/American poet
Grégoire Brainin (Moineau, 1933), French poet and philosopher
Harald Brainin (1923-2006), Austrian poet and writer
Jerome (Jerry) Brainin (1916-2000), American jazz and film composer, the author of a song The Night Has a Thousand Eyes (for the same film, 1948), which became a Jazz standard
Max Brainin (1909-2002), Austrian/American commercial graphic artist and violinist
Norbert Brainin (1923–2005), Austrian/British violinist, the founder of Amadeus Quartet
Peter Brainin (?), American saxophonist and jazz composer
Reuben Brainin (1862–1939), Hebrew publicist, biographer and public figure
Risa Brainin (?), American theater manager
Rob Brainin (1971), American business leader
Simon Brainin (1854-?), Russian/American physician and public figure
Teodor Brainin (1905-?), Russian film actor, the most known film: Benya Krik (1926)
Valeri Brainin (1948), Russian/German musicologist, music manager and poet
Bruce Braynen (1912-2012), MBE - member of British Empire, Bahamian Politician, Former member of Bahamas parliament, Former V. president of senate, Builder/ developer, statesman, related (nephew)to the late Sir Alvin R. Braynen
Sir Alvin Rudolf Braynen (1904-1992) knighted by Queen Elizabeth II, KCMG - Knight Commander of British Empire, Bahamian Politician, Former member of Bahamas parliament, Former Speaker & Deputy Speaker in Parliament, Co-Founder of Bahamas Chamber of Commerce
Other manner of writing:
Bob Brainen (?), American DJ (WFMU Radio)
Raymond Breinin (1910-2000), Russian/American painter and designer
Zofia (Sofie, Sophie) Röhr-Brajnin (1861-1937), Polish/German soprano