Son of Dennis
An English patronymic surname meaning 'son of Dennis.' The root name Dennis is derived from Dionysius, the Greek god of wine, fertility, and revelry.
Less common today
Dennison isn't in the latest US Top 1000. It last peaked at #3,649 in 1990.
US births per 5-year period, 1990βpresent (SSA data).
Former Premier of Prince Edward Island
Travel writer and novelist