Erwan is a masculine French-Breton given name. Notable people with the name include:
Erwan Bergot (1930–1993), French Army officer and writerErwan Berthou (1861–1933), French poet, writer and bardErwan Bouroullec (born 1976), French designer. See Ronan & Erwan BouroullecErwan Pain (born 1986), French ice hockey playerErwan Quintin (born 1984), French footballerErwan Vallerie (born 1944), French economist and Breton nationalist