Lawrence, 22, and Hoult, 23, co-starred in the 2010 movie "X-Men: First Class," and were dating until recently.
UsMagazine.com didn't say when or why they decided to call it quits.
Lawrence is best known for her work in the blockbuster "The Hunger Games" and current Best Picture nominee "Silver Linings Playbook."
Hoult's films include "About a Boy," "A Single Man," and the upcoming "Warm Bodies" and "Mad Max: Fury Road."
Celebrity Families of 2014 [PHOTOS]