Sea Hawk or Seahawk may refer to:

• Osprey, a diurnal, fish-eating bird of prey
• Skua, a group of seabirds comprising seven species

• Curtiss F7C Seahawk, a carrier-capable biplane fighter aircraft of the United States Navy in the late 1920s and early 1930s
• Curtiss SC Seahawk, a World War II United States Navy scout floatplane
• Hawker Sea Hawk, a British carrier-based fighter aircraft of the 1950s built by Armstrong Whitworth
• Sikorsky SH-60 Seahawk, an American helicopter
• Wüst Seahawk, a German amateur-built flying boat design
• Y2Fly Seahawk, an ultralight flying boat

• Sea Hawk, a recurring guest character from the animated television series She-Ra: Princess of Power and its reboot, She-Ra and the Princesses of Power
• The Sea Hawk, a 1915 novel by Rafael Sabatini
  • The Sea Hawk (1924 film), film based on the novel, starring Milton Sills
  • The Sea Hawk (1940 film), film inspired by the novel, starring Errol Flynn
• Sea Hawks (TV series), an Indian series broadcast by DD National
• USS Seahawk CVN-65, a fictional aircraft carrier on the TV series JAG
• Sea Hawk, a 1987 shooter video game released by Froggo

• RNAS Culdrose (HMS Seahawk), name of the Royal Naval Air Station Culdrose at Helston in Cornwall
• USS Sea Hawk (SP-2365), a United States Navy patrol boat in commission from 1917 to 1919
• Rheinmetall Seahawk, a model of 20 mm naval autocannon used aboard TTS Brighton

• The mascot of Chief Sealth High School in Seattle, Washington
• The mascot of Delaware Military Academy in Wilmington, Delaware
• The mascot of Peninsula High School near Gig Harbor, Washington
• The mascot of Redondo Union High School in Redondo Beach, California
• The mascot of South Lakes High School near Reston in Fairfax County, Virginia
• The mascot of South River High School in Edgewater, Maryland
• The mascot of Southside High School in Chocowinity, North Carolina
• The mascot of H. Frank Carey Junior-Senior High School in Franklin Square, New York
• The mascot of Anacortes High School in Anacortes, Washington

• Bremerhaven Seahawks, an American football club from Bremerhaven, Germany
• Miami Seahawks, an All-America Football Conference team in 1946
• Seattle Seahawks, a National Football League team
• Seattle Seahawks (hockey), an ice hockey team that played from 1933 to 1941
• Seahawks Gdynia, a Polish American Football League team

• Broward Seahawks, athletic teams from Broward College, Florida
• Cabrillo College Seahawks, athletic teams from Cabrillo College in Aptos California
• Iowa Pre-Flight Seahawks football, a college football team during World War II
• Memorial Sea-Hawks, athletic teams from Memorial University of Newfoundland in St. John's, Newfoundland and Labrador, Canada
• Keiser Seahawks, athletic teams from Keiser University's Florida campus
• St. Mary's Seahawks, athletic teams from St. Mary's College of Maryland
• Salve Regina Seahawks, athletic teams from Salve Regina University in Newport, Rhode Island
• UNC Wilmington Seahawks, athletic teams from the University of North Carolina at Wilmington
• Wagner Seahawks, athletic teams from Wagner College in Staten Island, New York
• LSCPA Seahawks, athletic teams from Lamar State College–Port Arthur in Port Arthur, Texas