Grey's Anatomy star Katherine Heigl was named the world's most desirable woman by Askmen.com. Those men asked to participate in this survey may be smoking something, but she is pretty hot, we will give them that.

Here's a photo of her that may give you some idea of why she won. It's no Katherine Heigl nude, sorry, but it's still pretty sexy in a classy way ...

Katherine Heigl hates her own show, Grey's Anatomy, but the men love her.

Here's the full top 10, as ranked by that website, with hot photos of each below. Click to enlarge the following hotties!

1. Katherine Heigl
2. Alessandra Ambrosio
3. Kate Beckinsale
4. Eva Mendes
5. Jessica Alba
6. Scarlett Johansson
7. Jessica Biel
8. Rihanna
9. Marisa Miller
10. Adriana Lima