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.
Fewer than 5 boys were named Tennison in 2025.
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
