Son of Dennis
An English patronymic surname meaning 'son of Dennis.' The name Dennis itself is derived from Dionysius, the Greek god of wine, theater, and ecstasy.
Less common today
Tennison isn't in the latest US Top 1000. It last peaked at #8,792 in 2019.
US births per 5-year period, 1990–present (SSA data).
Victorian Poet Laureate of Great Britain
A character in the Ben 10 series · Ben 10
