Is it valentines or valentine’s?

When referring to the holiday itself, the correct spelling is Valentine’s (e.g., “Happy Valentine’s Day!”). The holiday is named after St. Valentine, so “Valentine’s Day” uses the possessive noun form. It is also always capitalized since it is a proper noun.

However, valentines (with no apostrophe) is correct when you are referring to cards that are sent on Valentine’s Day (e.g., “She has to bring 25 valentines for her class”).

QuillBot’s Grammar Checker can help you use Valentine’s or valentines correctly.