Seacoast United Phantoms

The Seacoast United Phantoms (formerly the New Hampshire Phantoms) are an American soccer team based in the coastal region of southeastern New Hampshire and northeastern Massachusetts. The team is based in Portsmouth, New Hampshire, where it played from 2011 to 2017, in the stadium of Portsmouth High School. Founded in 1996, the team plays in USL League Two, the fourth tier of the American Soccer Pyramid. The team's colors are blue, white, gold and black.

The team also fields a team in the USL's Super-20 League, a league for players 17 to 20 years of age run under the United Soccer Leagues umbrella.