Short form of Silas or Seymour; also 'forest' or 'marshy'.
Sy is primarily used as a diminutive of names like Silas, meaning 'of the forest', or Seymour, meaning 'marshy land'. It has emerged as a standalone minimalist name in its own right. In some contexts, it is also associated with the Hebrew name Simon, meaning 'he has heard'.
About 10 boys were named Sy in 2025.
American film and television actor
Designer of the modern baseball card
Character in the film 'The Last Days of Disco' · The Last Days of Disco
Main character played by Robin Williams · One Hour Photo
US births per 5-year period, 1990–present (SSA data).