Gracious
A modern variant of Jensen, which is a Danish and Norwegian patronymic meaning 'son of Jens'. Jens itself is a Scandinavian form of John, ultimately derived from the Hebrew name Yochanan.
Less common today
Jentzen isn't in the latest US Top 1000. It last peaked at #5,637 in 2013.
American actor and social media personality
US births per 5-year period, 1990βpresent (SSA data).