A welder is a tradesperson who specializes in fusing materials together.
Welder may also refer to:
Arts and entertainment Welder (album), a 2010 album by Elizabeth Cook The Welder, a 2021 American horror film
People Welder (footballer) (born 1969), Brazilian football player Weldinho, or Welder da Silva Marçal, Brazilian football player Welder Knaf (born 1981), Brazilian para table tennis player Thomas Welder (1940–2020), American educator and nun
Other uses Harland & Wolff Welders F.C., a football club in Belfast, Northern Ireland Welding power supply, a machine used to power arc welding procedures Welder Wildlife Foundation, a wildlife foundation in Texas