Tomás Gustavo Gil Guillén (April 19, 1939 – December 8, 2015) was a Venezuelan professional baseball player.

[1] He played in Major League Baseball as a second baseman for the Cleveland Indians (1967) and Seattle Pilots / Milwaukee Brewers (1969–1971).

[1] Career highlights include a game-tying, two-run pinch hit double in the top of the ninth inning against the New York Yankees, then scored to put the Pilots ahead to stay, winning 5–4 (June 14, 1969);[5] a walk-off, two-run double with two outs in the bottom of the ninth for the Brewers as they came from behind and defeated the Minnesota Twins, 4–3 (June 23, 1970);[6] drove in both Milwaukee runs with a pair of sacrifice flies in a 2–1 win over the Kansas City Royals (July 5, 1970);[7] hit the only home run of his major league career, a solo shot against Chicago White Sox left-hander Jim Magnuson (August 5, 1970).

[8] In between major league seasons, Gil also played winter baseball with the Industriales de Valencia, Navegantes del Magallanes and Cardenales de Lara clubs of the Venezuelan Professional Baseball League in a career spanning 19 seasons from 1959 to 1977.

[1] His performance as a fielder was much better, with 186 putouts, 192 assists and 36 double plays, but only five errors out of 383 total chances for a .982 fielding percentage.