From Wikipedia, natch...

Captain America is a Timely/Atlas/Marvel comic book superhero.

Captain America may also refer to:

• Captain America: The First Avenger, a 2011 film directed by Joe Johnston and starring Chris Evans, Tommy Lee Jones and Hugo Weaving.
• Captain America (serial), a 1944 serial
• Captain America (1990 film), a film starring Matt Salinger
• Captain America (album), an album by Jimmy Buffett
• Captain America, a song by the band moe. from their album Dither
• Captain America, a character in the film Easy Rider
• Captain America, a Scottish rock band later known as Eugenius
• Captain America or Randy Couture (born 1963), mixed martial arts fighter
• Captain Americas, a themed restaurant chain in Ireland (since 1971)
• Captain America, a character in the television series Generation Kill
• Claudio Reyna, former captain of the United States men's national soccer team, dubbed Captain America by British media