SuicideGirls is an online community-based website that revolves around pin-up photography sets of models known as the Suicide Girls.

A pin-up model is a model whose mass-produced pictures and photographs have wide appeal within the popular culture of a society. Pin-up models are usually glamour models, actresses, and fashion models whose pictures are intended for informal, aesthetic display, such as being pinned onto a wall. Beginning in the 1940s, pictures of pin-up girls were also known as cheesecake in the U.S.