Irish Americans trace their ancestry to Ireland. Many American Presidents including Andrew Jackson and Barack Obama are of Irish Ancestry. The influence and the mix of the Irish-Americans in the American population is undeniably huge. They are the largest ancestral group in America.

Even in Hollywood, there have been innumerable Irish-American actresses who have made their mark from Drew Barrymore to Anne Hathaway and Katherine Heigl.

Here is a list of Hollywood starlets who according to Irish Central are the most Beautiful Irish-American actresses in Hollywood, having wowed their audience with good looks, talent and of course the Irish roots. Check out their pictures below.

Lindsay Lohan
Lindsay Lohan Reuters
Katherine Heigl
Katherine Heigl has proven to be a talented comedic actress, but the Emmy Award-winning star is also known for her Irish pride. Reuters
Laura Prepon
Laura Prepon, star of NBC's "Are You There, Chelsea?" will be reuniting with "That 70's Show" costar, Wilmer Valderamma on tonight's episode. Reuters
Vanessa Hudgens
Vannessa Hudgens was a victim of multiple nude photo leaks. The first was in 2007 when photos surfaced of her both in lingerie and naked. A new set of photos appeared again in 2009 and she sued "www.moejackson.com" for posting nude 'self-portrait photographs’ of her taken on a mobile phone in a private home. More pictures were released in March this year as well as a nude video, according to US Weekly. Reuters
Olivia Wilde
Olivia Wilde Reuters
Zooey Doschanel
Zooey Doschanel Reuters
Anne Hathaway
Anne Hathaway Reuters
Barack obama Hollywood Barack obama Hollywood