Cavan Sullivan (born September 28, 2009) is an American professional soccer player who plays as a midfielder for the Philadelphia Union of Major League Soccer. Sullivan made his Major League Soccer debut for the Philadelphia Union on July 17, 2024. At 14 years and 293 days old, Sullivan became the youngest player to appear in a league match for a major professional league in the United States, breaking Freddy Adu's record set in 2004 by 13 days. On July 23, he played for the MLS Next East team in the MLS Next All-Star Game and was named the most valuable player for his goal and assist in the East's 4–2 victory.
