Matthew Alexander "Matt" Kopa (born February 25, 1987) is a free agent [American football]] offensive tackle of the National Football League. He played college football for Stanford where he changed positions from defensive to offensive lineman in 2007. Kopa was signed in 2010 by the San Francisco 49ers as an undrafted free agent. On November 9, 2010, Kopa was signed by the Miami Dolphins off of the 49ers practice squad. He later played for the New England Patriots and the Philadelphia Eagles.