Is it president’s day or presidents’ day?

The US holiday is typically referred to as Presidents’ Day (with the apostrophe following the “s”). It celebrates the birthdays of both George Washington and Abraham Lincoln, so the plural noun “presidents” is made into a possessive noun by adding an apostrophe to the end.

The holiday goes by various official names in different states, and at the federal level, it is known as Washington’s Birthday. However, Presidents’ Day is the most general way to refer to the mid-February holiday.

A QuillBot grammar check can help you use apostrophes correctly in all your writing.