Steven Paul "Steve" Dannenmann is a CPA from Severn, Maryland who gained attention in the poker world for his success in the 2005 World Series of Poker, finishing runner-up to Joe Hachem in the Main Event in his first attempt. He won $4,250,000 as the result of this second place finish.

Severn is a census-designated place (CDP) in Anne Arundel County, Maryland, United States. According to the 2020 U.S. census, the population of Severn is 57,118, a 22.6% increase from 44,231 in 2010. The zip code is 21144.