Erwan is a masculine French given name and may refer to:
- Erwan Bergot (1930–1993), French Army officer and writer
- Erwan Berthou (1861–1933), French poet, writer and bard
- Erwan Bouroullec (born 1976), French designer. See Ronan & Erwan Bouroullec
- Erwan Pain (born 1986), French ice hockey player
- Erwan Quintin (born 1984), French footballer
- Erwan Vallerie (born 1944), French economist and Breton nationalist
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