Anthrocon (abbreviated AC) is the world's largest furry convention, taking place in Pittsburgh, Pennsylvania each June or July. Its focus is on furries: fictional anthropomorphic animal characters in art and literature. The convention was first held in 1997 in New York State, and draws over 4,000 attendees annually.

Founded in 1997 as Albany Anthrocon (AAC) in New York State, with a membership of about 500, the convention moved to Valley Forge, Pennsylvania in 1999 and 2000; then to a larger hotel, the Adams Mark, on the outskirts of Philadelphia in 2001. Attendance grew each year, Anthrocon becoming the largest furry convention in 2001 with an attendance of 1,457; in 2004 it had climbed to 2,404.

Due to the unforeseen sale of the Adams Mark Hotel in November 2004, Anthrocon chose the Wyndham Franklin Plaza in Philadelphia as the site for its 2005 convention. Attendance that year dropped slightly to 2,373, due in part to higher parking fees, a different and unfamiliar hotel (the Wyndham Franklin Plaza in downtown Philadelphia), and possibly due to Hurricane Dennis's effect on the southern United States which closed many airports and prevented people from traveling. In June 2005, a contract with the Westin Convention Center Hotel in Pittsburgh was signed, and Anthrocon was scheduled to be held at the adjoining David L. Lawrence Convention Center between June 15 and 18, 2006. Despite concerns that the move to Pittsburgh and temporary date shift would decrease attendance, it actually rose to 2,489, which was enough to ensure the future of the convention in Pittsburgh.