Brian O'Neal Jordan (born March 29, 1967) is an American former professional baseball and professional gridiron football player. 

Jordan played for the Atlanta Falcons of the National Football League as a safety from 1989 to 1991, and played for the St. Louis Cardinals, Atlanta Braves, Los Angeles Dodgers, and Texas Rangers of Major League Baseball (MLB) as an outfielder from 1992 to 2006. Jordan was an MLB All-Star in 1999.

Jordan was a sports star at Milford Mill High School in Baltimore, Maryland, and he graduated from the University of Richmond. He was selected in the first round of the 1988 MLB draft by the St. Louis Cardinals. In the 1989 NFL Draft, he was taken in the seventh round by the Buffalo Bills but was cut in training camp.

While he played in the Cardinals' minor league system, Jordan also played defensive back for the Falcons from 1989 to 1991. He had five interceptions and four sacks in his brief NFL career. 

He led Atlanta in tackles and was voted as an alternate to the National Football Conference Pro Bowl team during the 1991 season.

In June 1992 Jordan signed a new contract with St Louis giving him a $1.7 million signing bonus to give up football and play baseball exclusively, ending his football career.

In 1456 games over 15 seasons, Jordan posted a .282 batting average (1454-for-5160) with 755 runs, 267 doubles, 37 triples, 184 home runs, 821 RBI, 119 stolen bases, 353 bases on balls, .333 on-base percentage and .455 slugging percentage. He finished his career with a .988 fielding percentage playing at all three outfield positions and first base. 

In 38 postseason games, he hit .250 (35-for-140) with 16 runs, 6 doubles, 6 home runs, 27 RBI and 11 walks.Jordan posted a .422 batting average with runners in scoring position (RISP), which became the Cardinals' all-time highest mark (the RISP statistic has been officially and reliably kept since 1974), until outfielder Allen Craig topped it in 2013.

He also led the Major Leagues in batting average with the bases loaded. In the postseason that year, Jordan hit .333 in the NLDS and had a game-winning home run in Game 4 of the 1996 NLCS.

Shrugging off a 1997 season in which he suffered injuries and hit .234 with no home runs, Jordan scored 100 runs, hit 25 home runs, batted a career-high .316, and had a .534 slugging percentage in 1998.

Jordan had a strong April and May to help carry the Braves early in the 1999 season. This propelled him to his only All-Star appearance. He finished the season with 100 runs again and drove in 115 runs. 

In the 1999 NLDS against the Houston Astros, Jordan batted .471, had the game-winning double in the 12th inning of Game 3, and drove in seven of Atlanta's 18 runs during the series. He contributed two home runs in the 1999 NLCS, but went 1 for 13 in his only World Series appearance.