Gwinnett County is a county in the U.S. state of Georgia, named for Button Gwinnett, one of the signers of the Declaration of Independence. The county is the Atlanta metropolitan area's north-eastern link to Interstate 85, and is the second most populous county in the state, after Fulton County. As of the 2010 census, its population was 805,321.

Its county seat is Lawrenceville.

Located along the Eastern Continental Divide; according to the 2000 census, the county has a total area of 436.72 square miles (1,131.1 square kilometers), of which 432.73 square miles (1,120.8 square kilometers) (or 99.09%) is land and 3.99 square miles (10.3 square kilometers) (or 0.91%) is water.

A portion of the county to the northwest is a part of the Chattahoochee River National Recreation Area chain.

The regional reservoir, Lake Lanier, at the extreme north of the county, is the central cause to the Tri-state water dispute.

The county maintains a regional airport under the name Gwinnett County Airport, formerly, Briscoe Field.

David John "Dave" Matthews (born January 9, 1967) is a South African-American musician and actor, best known as the lead vocalist, songwriter, and guitarist for the Dave Matthews Band. He performs mainly with acoustic guitar and favors rhythm rather than solos in his playing.

David John Matthews was born in Johannesburg, South Africa, the third of four children of parents John and Valerie Matthews. At two years old, Matthews' family moved to Yorktown Heights in Westchester County, New York, where his father, a physicist, started working for IBM.

In 1974, the family moved to Cambridge, England, for a year before returning to New York, where his father died from lung cancer in 1977. Biographer Nevin Martell argues that Dave's father's death may be an impetus for his "carpe diem" lyrics. At some point while residing in New York, Matthews attended his first concert, when his mother took him to a performance by Pete Seeger. The family moved back to Johannesburg, South Africa, in 1977.

Upon Matthews' graduation from St Stithians College high school in 1985, he was faced with conscription into the South African military just as civil disobedience to the practice was becoming widespread. A Quaker (and consequently pacifist), Matthews left South Africa to avoid service.

Button Gwinnett (1735 – May 19, 1777) was an English-born American political leader who, as a representative of Georgia to the Continental Congress, was the second of the signatories (first signature on the left) on the United States Declaration of Independence. He was also, briefly, the provisional president of Georgia in 1777, and Gwinnett County (now a major suburb of metropolitan Atlanta) was named for him. Gwinnett was killed in a duel by a rival, Lachlan McIntosh, following a dispute after a failed invasion of East Florida.

Gwinnett was born in 1735 in the parish of Down Hatherley in the country of Gloucestershire, England, to Welsh parents, the Reverend Samuel and Anne (née Button) Gwinnett. He was the first of his parents' seven children. There are conflicting reports as to his birth date, but he was baptized in St Catherine’s Church in Gloucester on April 10, 1735. After attending The King's School, Gloucester he started his career as a merchant in England. He then moved to Wolverhampton in 1755 and married a local, Ann Bourne, in 1757 at St. Peter's Church at the age of 22. In 1762 the couple left Wolverhampton and moved to America.