Alexy is a surname, and may refer to:
- Archbishop Alexy (born 1967), Russian religious leader
- Gillian Alexy (born 1986), Australian actress
- Janko Alexy (1894–1970), Slovakian painter, writer, and publicist
- Károly Alexy (1823–1880), Hungarian sculptor
- Robert Alexy (born 1945), German jurist and philosopher