Arielle St. Cyr Vandenberg (born September 27, 1986) is an American actress and model.

Vandenberg was born on September 27, 1986, in Los Angeles County, California, the only child of Dirk and DeEtte Vandenberg. She was raised in Fallbrook, California and graduated from Fallbrook Union High School. She studied ballet, tap and jazz dancing at the age of five, and later became involved in community theater.

Vandenberg guest-starred in the first two seasons of Meet the Browns as London Sheraton, and had a recurring guest role in Greek as Lisa Lawson. She has made once-off appearances in other television series including CSI: Miami, Bones, How I Met Your Mother and Numbers, and has appeared in non-speaking roles in films including Epic Movie and The Ugly Truth. She has starred in several television commercials for brands including Mercedes-Benz, Coca-Cola Zero, State Farm Insurance, and Progressive Auto Insurance. In 2013, Vandenberg appeared in the music video for the single “R U Mine?” by Arctic Monkeys.

Vandenberg had a large following on Twitter’s video service Vine prior to its closure in 2017.