John Lawrence Christensen (born September 5, 1960) is an American former professional baseball right fielder.

Following the season, the Mets traded Christensen to the Boston Red Sox along with Calvin Schiraldi, Wes Gardner and La Schelle Tarver for Bob Ojeda, Tom McCarthy, John Mitchell and Chris Bayer.

After spending all of 1986 with the International League's Pawtucket Red Sox, he was sent as the player to be named later in the deal that netted Boston Dave Henderson and Spike Owen from the Seattle Mariners.

Christensen batted .385 for Seattle's double A Southern League affiliate, the Chattanooga Lookouts in 1987.

He split the remainder of the season between the Twins, where he batted .263 in 23 games, and their top farm club, the Portland Beavers.