Follower of Dionysos
Denisa is the feminine form of Denis, derived from the Greek name Dionysios. It refers to a follower of Dionysos, the Greek god of wine, fertility, and revelry. The name has seen its greatest popularity in Eastern Europe, particularly in Romania and the Czech Republic.
Less common today
Denisa isn't in the latest US Top 1000. It last peaked at #5,122 in 1990.
Czech actress
Czech track and field athlete
Czech fashion model
US births per 5-year period, 1990–present (SSA data).