Alén is both a given name and a surname. Notable people of the name include the following:
Surname Alberto Alén Pérez (1948–2004), Cuban musicologist Juha Alén (born 1981), Finnish ice hockey player Markku Alén (born 1951), Finnish racing driver
Given name Alén Diviš (1900–1956), Czech artist
See also Alen (given name) Alen baronets Van Alen