Plank may refer to:
- Plank (wood), flat, elongated, and rectangular timber with parallel faces
- Plank (exercise), an isometric exercise for the abdominal muscles
- Plank, Kentucky, an unincorporated community in the United States
- The Plank (1967 film), a British comedy film with no dialogue
- The Plank (1979 film), a remake of the 1967 film
- Plank, a character in Ed, Edd n Eddy
- An item of a political party platform
People
- Alex Plank (born 1986) Autistic activist
- Conny Plank (1940−1987), German record producer and musician
- Ed Plank (born 1952), American baseball pitcher in the late 1970s
- Eddie Plank (1875−1926), early 20th-century American baseball player
- Elizabeth Plank (born 1987), Canadian blogger and online journalist
- Heinz Plank (born 1945), German painter, draughtsman and graphic artist
- Kevin Plank (born 1972), American businessman; founder of sports clothing company Under Armour
- Peter "Plank" Clements, guitar technician for Radiohead
- Raymond Plank (1922−2018), American businessman
See also
- Walking the plank, form of execution associated with pirates
- Plank house, homes of indigenous people of the Pacific Northwest constructed from the cedar tree
- American historic carpentry discussed several types of plank houses
- Tychonoff plank, a topological space that is used in mathematics as a counterexample to several plausible-sounding conjectures
- Planck (disambiguation)
- Planking (disambiguation)
- Slats (disambiguation)
- Walk the Plank (disambiguation)