Plimsoll is a surname, and may refer to:
- James Plimsoll, a governor of Tasmania
- John Plimsoll, South African cricketer
- Oliver Plimsolls, fictional character in The League of Gentlemen (comedy)
- Samuel Plimsoll, British politician
- Plimsoll line, see waterline
Plimsoll may also refer to:
- the plimsoll symbol ⦵ (or
o) that is used as a superscript in the notation of thermodynamics to indicate an arbitrarily chosen non-zero reference point ("standard state"). - Plimsoll line or Plimsoll mark on a ship's hull, named after Samuel Plimsoll
- Plimsoll shoe, which is named for the shoe's horizontal lines, which resemble the Plimsoll line
Sounds like:
- The Plimsouls, an American Rock Band.