Deanna Russo (born October 17, 1979, in New Jersey, USA) is an American actress. She is best known for her role as Dr. Logan Armstrong on the soap opera The Young and the Restless. She most recently starred in NBC's Knight Rider TV movie as Sarah Graiman, the daughter of the creator of KITT, a role that she reprises in the new Knight Rider series.

Russo's other acting credits include guest roles on Charmed, CSI, CSI: NY and How I Met Your Mother . She was also in the 2008 movies Ghost Voyage and Knight Rider. Additionally, she directed a prize-winning comedic short film "A Taste of Kream". She has appeared in many commercials for Ford, Axe, Disney, etc. One of her Axe clips was selected for "Funniest commercials of 2007"

She has also appeared on a great many magazine covers (Brides, Health, etc), and was "Babe of the Month" in the December 2007 Playboy.