Beth Ostrosky (born July 15, 1972 in Pittsburgh) is an American model who became known by the public for being the girlfriend of radio personality Howard Stern.

Born in Pittsburgh, Ostrosky began her modeling career by doing fashion shows at the age of 9. Continuing to model through her high school days at surburban Fox Chapel, Pennsylvania, Ostrosky moved from Pittsburgh to New York soon after graduation in order to pursue her modeling career.

Soon after her New York arrival talent scouts began to take notice of Ostrosky, especially considering her "blonde bombshell" looks, and began to offer her bit parts in movies and television campaigns. Ostrosky received her first major role playing opposite Ben Stiller, as one of the daughters of Stiller's "supposed" birth parents, in the 1996 film Flirting with Disaster.

Ostrosky played a more prominent role opposite Amanda Peet in the film Whipped four years later. Meanwhile she continued to pursue her modeling career, becoming known for her specialization in swimsuit spreads.

In 2000 Ostrosky met radio personality Howard Stern at a dinner party. They soon after were considered a couple, though it would take Stern nine months before confirming this on his morning radio show.

Ostrosky still continues to model today, as well as do movies and some television, most recently seen in the Spike TV series Casino Cinema. She has also appeared in her own line of calendars as well as on the covers of several magazines. Ostrosky has been named in the Top 100 Sexiest Women of the Year in 2002, 2003, and 2004 by the readers of FHM. Ostrosky announced in April 2006 that she would be hosting a new season of the G4 show, Filter.