Solomon Faine (17 August 1926 – 4 February 2021) was a New Zealand-born microbiologist known for his research on leptospirosis. With Dr. Leopold Kirschner, Faine made early epidemiologic descriptions of leptospirosis as an occupational disease of dairy farmers in New Zealand. The intermediate Leptospira species Leptospira fainei is named in his honor.