A tiller is a lever to provide leverage for the helmsman to turn the rudder of a ship. Tiller may also refer to:

Animals Tiller (horse) (born 1974), an American thoroughbred racehorse

Archery Tiller, the stock of a crossbow Tiller, the difference between the limb-string distances measured where the limbs are attached to the riser (Recurve bow) Tiller, the device a bowyer (maker of bows) uses to see if the bending of the bow limbs is equal

Mechanical Tiller (automobile), a steering device present on some very early automobiles before the steering wheel Tiller (aircraft), a small steering wheel in the cockpit of an aircraft used to steer the nose wheel Tiller truck, a fire truck with separate steering wheels for front and rear wheels Rotary tiller, a garden implement used for turning soil (or the person who operates such a device)

Places Tiller, Norway, a neighborhood in Trondheim, Norway Tiller Municipality, a former municipality that is now part of Trondheim Municipality in Trøndelag County, Norway Tiller, Oregon, an unincorporated community in Douglas County, Oregon in the United States Tiller Ranger Station, a United States Forest Service compound in Oregon's Umpqua National Forest Tiller Church, a church in the city of Trondheim in Trøndelag county, Norway Tiller School, a non-profit charter school serving kindergarten through fifth grade in Beaufort, North Carolina

Plants Tiller (botany), a stem produced by grass plants, and refers to all shoots that grow after the initial parent shoot grows from a seed

People Andrew Tiller (born 1989), American football guard for the New Orleans Saints of the National Football League (NFL) Bill Tiller (born 1967), American computer game designer, writer, and artist Bjørn Tiller (born 1959), Norwegian chess player Bryson Tiller (born 1993), American singer, songwriter and rapper Carl Frode Tiller (born 1970), Norwegian author, historian and musician Chris Tiller (born 1978), former Major League Baseball umpire David Tiller (born 1958), former Australian rules footballer in the South Australian National Football League David Tiller (professor), Australian Professor of Medicine George Tiller (1941–2009), murdered American abortion doctor Gerald Tiller, a member of Dem Franchize Boyz rap group Henry Tiller (1914–1999), Norwegian boxer who competed in the 1936 Summer Olympics J. T. Tiller (born 1988), American professional basketball player Joe Tiller (1942–2017), American football player and coach John Tiller (1854–1925), musical theatre director John Tiller (priest) (born 1938), Anglican priest and author Kate Tiller, reader emerita in English local history at Kellogg College, University of Oxford Kelvin Tiller (born 1990), American mixed martial artist Mavis Tiller (1901–1989), New Zealand women's advocate, scientist and president of the National Council of Women of New Zealand Morgan Tiller (1918–1983), American football player and coach Nadja Tiller (1929–2023), Austrian actress Rasmus Tiller (born 1996), Norwegian cyclist Robert Tiller (born 1949), Canadian Thoroughbred racehorse trainer Sharon Tiller, American film maker who has numerous film and television credits as a writer, director, and producer Stephen Tiller (born 1987), Australian rules footballer for the Western Bulldogs of the AFL Terence Tiller (1916–1987), English poet and radio producer Tony Tiller (born 1981), former American football cornerback William A. Tiller, professor emeritus of materials science and engineering at Stanford University Tiller Girls, a popular dance troupe of the 1890s in England

Sports Tiller IL, A Norwegian sports club

Other Tiller Systems (software), a leading cloud-based iPad point of sale (POS) software company headquartered in Paris, France

See also Tilley (disambiguation)