Is it Mother's Day or Mothers' Day?

Answer:
The correct punctuation is Mother's Day.

Mother's Day is the original way that day was titled and that is the spelling used on cards, the law making it an official holiday in the US and in congressional bills. Mother's Day is the preferred spelling. It is the day to honor your own mother.
First answer by Kluss. Last edit by Kluss. Contributor trust: 693 [recommend contributor recommended]. Question popularity: 2 [recommend question].