Sean Lee Smith is a former American football cornerback. He was drafted by the Miami Dolphins in the second round of the 2009 NFL Draft. He has also played for the Kansas City Chiefs and Oakland Raiders. He played college football at Utah.

The 2009 NFL draft was the 74th annual meeting of National Football League (NFL) franchises to select newly eligible football players. The draft took place at Radio City Music Hall in New York City, New York, on April 25 and 26, 2009. The draft consisted of two rounds on the first day, starting at 4:00 pm EDT, and five rounds on the second day, starting at 10:00 am EDT. To compensate for the time change from the previous year and in an effort to help shorten the draft, teams were no longer on the clock for 15 minutes in the first round and 10 minutes in the second round. Each team now had 10 minutes to make their selection in the first round and seven minutes in the second round. Rounds three through seven were shortened to five minutes per team. This was the first year that the NFL used this format and it was changed again the following year for the 2010 NFL draft. The 2009 NFL draft was televised by both NFL Network and ESPN and was the first to have cheerleaders. The Detroit Lions, who became the first team in NFL history to finish a season at 0–16, used the first selection in the draft to select University of Georgia quarterback Matthew Stafford.