Plaskett may refer to:
Places Plaskett, California Plaskett (crater), a lunar impact crater 2905 Plaskett, an asteroid
People with the surname Elmo Plaskett (1938–1998), American baseball player Freddie Plaskett (1926–2018), British soldier and chief executive Harry Hemley Plaskett (1893–1980), Canadian astronomer James Plaskett (born 1960), British chess player Joel Plaskett (born 1974), Canadian rock musician John Stanley Plaskett (1865–1941), Canadian astronomer Joseph Plaskett (1918–2014), Canadian painter Stacey Plaskett (born 1966), American politician from the US Virgin Islands
See also Plaskett's star Plaskitt, a surname