Alexis Knapp is an American actress. Alexis Knapp is known for her appearance in the 2012 comedy film Project X. She appeared in Percy Jackson & the Olympians: The Lightning Thief as Aphrodite Girl and in Couples Retreat.

She dated actor Ryan Phillippe in January of 2010, until splitting in November 2010. Before the break-up, she discovered that she was pregnant. She gave birth on July 1, 2011 to a daughter, Kailani Merizalde.