In 1971, Swann had 27 catches for 305 yards and two touchdowns. He led USC in catches and finished second to WR Edesel Garrison in receiving yards. In 1972, Swann rushed for 117 yards and had 27 catches for 543 yards and three touchdowns. This time, he led USC in receiving yards and finished second to tight end Charle Young in catches. In 1973, Swann rushed for 99 yards while catching 42 passes for 714 yards and six touchdowns.

Swann attended the University of Southern California, where he was an All-American on the Trojan football team. He played under coach John McKay, including the 1972 undefeated and national championship season. McKay said of Swann, “He has speed, soft hands, and grace.” He completed a Bachelor of Arts Degree in public relations in 1974.

Swann was selected by the Pittsburgh Steelers with the 21st pick of the first round in the 1974 NFL Draft. The Steelers draft class of ’74 is considered one of the best in NFL history and included four eventual Hall of Famers: Swann, John Stallworth, Mike Webster, and Jack Lambert.

Swann was named an All-Pro Team Selection in 1975, 1977, and 1978. He was elected to the Pro Football Hall of Fame in 2001, a year before his teammate John Stallworth.

During his time at ABC, Lynn Swann began his broadcasting career in 1976 while still active with the Pittsburgh Steelers. Upon retirement in January 1983, Swann began his career full-time with ABC Sports, which ended after the 2006 Sugar Bowl. Swann has broadcast a variety of events as a host, reporter, and analyst. Included in these events are: the 1976 Winter Olympics, the 1976 Summer Olympics, the 1980 Winter Olympics, the 1984 Winter Olympics, the 1984 Summer Olympics, the 1988 Winter Olympics, the Iditarod Trail sled dog race, International Diving Championships, USFL, college football and Monday Night Football, the Kentucky Derby, Preakness Stakes, Belmont Stakes, the Irish Derby, ABC’s Wide World of Sports, and Curt Gowdy’s The American Sportsman.

Three seasons later, the Steelers made it to Super Bowl XIII. In the game, Swann caught seven passes for 124 yards and scored the final touchdown for Pittsburgh in their 35–31 win over the Dallas Cowboys. The Steelers made it back to the Super Bowl again in the 1979 season, and Swann caught five passes for 79 yards and a touchdown in Pittsburgh’s 31–19 win in Super Bowl XIV. Overall, Swann gained 364 receiving yards and 398 all-purpose yards in his four Super Bowls, which were both Super Bowl records at the time.

On June 10, 1979, during the summer after winning Super Bowl XIII, Swann married Bernadette Robi, the daughter of singer Paul Robi of The Platters. The pair divorced in 1983, and she is currently married to boxing legend Sugar Ray Leonard.

Swann briefly hosted the television game show To Tell the Truth, on which he had previously appeared as a panelist before replacing original host Gordon Elliott, on NBC from 1990 to 1991. His 14-week run as emcee ended, and he was replaced by Alex Trebek. He made guest appearances on Mister Rogers’ Neighborhood, where he explained his enthusiasm for ballet, and The Paper Chase.

On June 23, 1991, Swann married Charena (née Shaffer), a psychologist, and they have two sons who currently play football collegiately.

Swann made an appearance, playing himself, in the role of a sideline reporter at the “Bourbon Bowl”, in the 1998 Adam Sandler comedy feature film The Waterboy. He was inducted into the Rose Bowl Hall of Fame on December 30, 2013, at the Pasadena Convention Center.

On June 20, 2002, President George W. Bush appointed Swann as the chairman of the United States President’s Council on Physical Fitness and Sports during a Fitness Expo at the White House. Swann succeeded Lee Haney, who had been appointed to the post by President Clinton.

In 2003, President Bush and Chairman Lynn Swann launched presidentschallenge.org at the Lakewest Family YMCA in Dallas, Texas. Within the next year, 300,000 individuals registered on the website. Swann spoke at the National Press Club about the Council’s programs to help Americans “Be Physically Active Every Day,” and introduced the Presidential Active Lifestyle Award.

In 2004, Swann and President Bush declared May as an annual “National Physical Fitness and Sports” month, and created the annual HealthierUS Fitness Festival. They also enacted the Healthier Feds Physical Activity Challenge initiative for federal employees. On July 30, 2005, Lynn Swann retired as council chairman to explore a campaign for governor. He was succeeded by John P. Burke.

In December 2004, Swann, who resides in the Pittsburgh suburb of Sewickley Heights, Pennsylvania, indicated that he was considering seeking the Republican nomination for Governor of Pennsylvania in the 2006 election. On February 23, 2005, Swann filed papers with the state elections board stating his intention to run. On the same day, he formed a fundraising committee called Team 88 after his Steeler jersey number. On January 4, 2006, Swann formally declared his candidacy.

Swann’s opponents for the Republican primary had initially included Jim Panyard, State Senator Jeff Piccola, and former Lieutenant Governor William Scranton, III. After Swann received the endorsement of the Republican state committee on February 11, 2006, all three opponents quit the race, leaving Swann as the only Republican to have filed by the deadline of March 7, 2006. Swann chose Montgomery County Commissioner Jim Matthews as his running mate.

Swann’s momentum did not survive a barrage of advertising from Rendell in early spring and had trouble keeping up with Rendell’s effective fundraising. In the end, Swann lost the election with 40% of the vote to incumbent Ed Rendell’s 60%. Had Swann won, he would have been the first African American Governor of Pennsylvania and only the third African American elected governor of a state in U.S. history. Of the three Republican African American gubernatorial candidates in 2006, all three of them lost; Kenneth Blackwell lost in Ohio, and Randy Daniels lost in New York.

Swann was the sideline reporter on CBS’ “Clash of Champions” bowling telecast that aired on May 10–11, 2008. He teamed with color analyst Nelson Burton Jr. and play-by-play man Bill Macatee. The broadcast marked bowling’s return to network television for the first time since 1999 when CBS carried it.

In 2008, Swann confirmed that he was considering running for the United States House of Representatives from Pennsylvania’s 4th congressional district against Rep. Jason Altmire. However, Swann did not file for the election and former congresswoman Melissa Hart won the Republican nomination unopposed and then lost to Altmire in the 2008 general election.

In the 2008 presidential election, Swann endorsed and campaigned with Arizona Senator John McCain for the presidency, though Swann had remained neutral through the primaries. In 2012, he did the same for former Massachusetts Governor Mitt Romney, once Romney had become the presumptive Republican nominee.

In October 2009, Swann joined the Augusta National Golf Club. He is a dues-paying member of the home of the Masters golf tournament, which is held every April.

On August 19, 2010, the Pittsburgh Tribune-Review reported that Swann would be a part of the ownership team for Pittsburgh’s AFL expansion franchise, which began playing in the spring of 2011. Named the Pittsburgh Power, the team shared the Consol Energy Center with the Pittsburgh Penguins of the National Hockey League. Swann has said that, despite his football experience, he does not interfere in the day-to-day coaching, although he would occasionally give some advice. The team folded in 2014.

In 2015, before the primary elections, Swann announced his support of former Florida Governor Jeb Bush, while also criticizing Donald Trump.

On April 13, 2016, Swann was named as the athletic director of the University of Southern California, succeeding retiring Pat Haden. He assumed the position on July 1, 2016. On September 9, 2019, Swann resigned as the athletic director for the University of Southern California.