Updated June 9, 2019 Share: Boy name origins & meanings Greek : Fine wine lover Boy name variations Dennis Denis Dennys Dennison Denniston Denzel Denzil Denzell Denit Dennet Dennett Dennit Dion Denny Tennyson How Popular Is The Name Tennis Family name origins & meanings Possibly an altered spelling of North German or Dutch Tönnis, a short form of the personal name Antonius (see Anthony).English (Welsh borders) : origin uncertain; perhaps a variant of Dennis 1.