Todd Ruben Cruz (November 23, 1955 – September 2, 2008), was an American professional baseball shortstop and third baseman, who played in Major League Baseball (MLB) between 1978 and 1984 with the Philadelphia Phillies, Kansas City Royals, California Angels, Chicago White Sox, Seattle Mariners, and Baltimore Orioles. He batted and threw right-handed.

Of Mexican-American descent, Cruz was born in Highland Park, Michigan, in Metro Detroit and was raised in Mexicantown in Detroit. He attended Western High School in Detroit.

Cruz was selected by the Philadelphia Phillies out of high school in the second round (26th overall) of the MLB amateur entry draft in June 1973, signing a contract later that month. He finally made his major league debut five years later, playing only three games in September 1978 with the Phillies. With Larry Bowa established as the everyday shortstop, Cruz was traded to the Royals for Doug Bird on April 3, 1979, three days before the start of a new season.

The Royals, with a glut of outfielders, a need for a starting first baseman and having decided on U.L. Washington as its regular shortstop, dealt Cruz along with Al Cowens to the Angels for Willie Aikens and Rance Mulliniks at the Winter Meetings in Toronto on December 6, 1979, with Craig Eaton being sent to California to complete the transaction four months later on April 1, 1980. A midseason swap for right-handed pitcher Randy Scarbery on June 12, 1980 sent Cruz to the Chicago White Sox, where he became the starting shortstop. Unfortunately, a back injury sidelined him for the entire 1981 season.

In May 1981, Cruz was arrested in Edmonton, Alberta, where he had been sent to play on a 20-day loan to the White Sox's Triple-A farm team, and charged with breaking and entering an Edmonton department store and stealing $2,500 worth of watches. He told the Chicago Tribune's Robert Markus that he was drunk when he made his way into the Hudson's Bay department store. "I guess I didn't know what I was doing or I never would have done it," Cruz told Markus. "I didn't need anything they had in that store." Cruz, who prosecutors later said had broken a plate glass window to gain entry and then used a hammer he found in the store to break into a watch display case, in July 1981 pleaded guilty to a reduced charge of attempted breaking and entering and theft and was given a conditional discharge and nine months probation.

The White Sox's search for a reliable batter capable of hitting for average resulted in Cruz being shipped, along with Jim Essian and Rod Allen, to the Seattle Mariners for Tom Paciorek on December 11, 1981. The 1982 campaign was Cruz's most productive offensively, as he established career highs with 57 runs batted in (RBI), 44 runs scored, 113 hits, and 16 home runs. He was supplanted as the regular shortstop by rookie Spike Owen the following year.

The Baltimore Orioles purchased Cruz's contract on June 30, 1983. In his first Orioles game on July 1, against the Detroit Tigers, he drove in six runs with a three-run homer and a bases-loaded double, leading the Orioles to a victory in Detroit, where he grew up. His biggest contribution was on defense. Manager Joe Altobelli explained Cruz's importance to the ballclub:

The biggest move we made was when we got Todd Cruz from Seattle. General manager Hank Peters made a great move there. Leo Hernández, he was a little late in getting the ball to second base, and his range was a little shallow. Todd Cruz was playing shortstop for Seattle when we got him. We moved him over to third base. He had real good range and got rid of the ball real quick. He solidified our infield for the second half.