I don't think I have an exact look-a-like but I've heard:
Angie Harmon
Shania Twain (Canadian country singer)
also when I have bangs people say I look like Angelina Jolie in SALT
except these ladies all have mature looks to them, I'm just 24 so I don't have the mature looks like they do yet...
I don't think there's anyone who really looks similar to me BUT my sister's boyfriend once told me I look like Kellie Pickler, my mom thinks I look like Chelsea Kane, and a boy at school told me I remind him of Chloe Moretz.
Mary-Kate Olsen when she has slightly darker/redder hair. I actually think she can look quite pretty...but you could never call that statement flattering (in a blanket way). You never know if people mean "Hot Mess":
I get young Angelina Jolie and Kiera Knightly "when she's smiling" (I had never really noticed her smile--I've always suspected her of an overbite--doNOThave--but apperently, according to people in bars, we share it).
Random people seem to think it's okiedokie to just approach me, hault whatever conversation I am having with friend/client/bf, spill their assessment of my features; break down: 75% nose (it's artic-circle tiny, some people even try to touch it) 20% lips (giant) 15% ginger hair.
I have been told several times that I look like Gwyneth Paltrow, but I don't really see it. I have also been told that I look like Kirsten Dunst, so I think any actress with pale skin and blonde hair could remind someone of me.