The first name Til is female and male.
Til is a Frisian short form of Detlef, Dietrich, Dietleib or Tillmann. Besides, it is a Dutch short form of Mathilde and thus also a girl’s name.
Til means “proficient”, “good” (from Old Frisian “til”) and “ruler of the people”, “the rich one of the people” (from Germanic “diot” = people). For girls, Til means “strength in battle”.