Michael Thomas Lansing (born April 3, 1968) is an American former Major League Baseball second baseman who played for the Montreal Expos, Colorado Rockies, and the Boston Red Sox between 1993 and 2001.

[2] In 2001, while playing with Boston, Lansing made a fine catch for the 2nd to last out helping to preserve Hideo Nomo's no-hitter vs. the Baltimore Orioles.

On May 7, 1997, in a game against the San Francisco Giants, Lansing became the first National League second baseman since Bobby Lowe in 1894 to homer twice in the same inning.

Then, on June 18, 2000, in a game against the Arizona Diamondbacks, Lansing hit for the cycle faster than any player in MLB history, completing it by the fourth inning in a 19–2 win.

Lansing was signed as a free agent by the Cleveland Indians, but played in the minors and suffered a back injury before retiring after the 2002 season.

During the search of Radomski's residence, an undated, partial shipping label was seized with Lansing's name on it and a Colorado address.