Brentford Football Club are a professional English football club based in Brentford in the London Borough of Hounslow that play in Football League One.

They were founded in 1889 and play their home games at Griffin Park, their home stadium since 1904. The club has a long-standing rivalry with near neighbours, Fulham. Brentford's most successful spell came during the 1930s, when they achieved consecutive top six finishes in the First Division. Since the War, they have spent most of their time in the third and fourth tiers of English football. Brentford have been FA Cup quarter-finalists on four occasions, and have three times been Football League Trophy runners-up.

Founded in 1889 to serve as a winter pursuit for the Brentford Rowing Club, the club moved to its present day home ground, Griffin Park, in 1904. In 1920, it was a founder member of the Third Division South. During the late 1920s and 1930s, the club began to make real progress. In the 1929–30 season, the side won all 21 of its home matches in the Third Division South, but still missed out on promotion. They are the last of six teams in English football to amass a perfect home record, and the only one to do so over a season of 42 matches or more. After several more near-misses, promotion to the Second Division was finally achieved in 1932–33. Two years later, Brentford reached the First Division and finished 5th in its debut season – which is still the club's highest ever league position – to complete a remarkable rise for the club. Brentford achieved more impressive placings in the league for the rest of the decade (6th in the following two seasons) before the Second World War interrupted.

Coordinates: 51°29′10″N 0°18′36″W / 51.4861°N 0.3101°W / 51.4861; -0.3101

Brentford is a suburban town in west London, England, and part of the London Borough of Hounslow. It is located at the confluence of the River Thames and the River Brent, 8 miles (13 km) west-southwest of Charing Cross. Its former ceremonial county was Middlesex.

The name is recorded as Breguntford in 705 in an Anglo-Saxon charter and means 'ford over the River Brent'. The name of the river is Celtic and means 'holy one' and the '-ford' suffix is Old English. The ford was most likely located where the main road crossed the river. New Brentford is recorded as Newe Braynford in 1521 and was previously known as Westbraynford. Old Brentford is recorded as Old Braynford in 1476 and was previously known as Estbraynford.

The settlement pre-dates the Roman occupation of Britain, and thus pre-dates the founding of London itself. Many pre-Roman artifacts have been excavated in and around the area in Brentford known as 'Old England'. Bronze Age pottery and burnt flints have been found in separate sites in Brentford. The quality and quantity of the artefacts suggests that Brentford was a meeting point for pre-Romanic tribes. One well known Iron Age piece from about 100 BC - AD 50 is the Brentford horn-cap - a ceremonial chariot fitting that formed part of local antiquarian Thomas Layton's collection, now held by the Museum of London. The Celtic knot pattern (the 'Brentford Knot') on this item has been copied for use on modern jewellery.