Peace Officers Memorial Day and Police Week is an observance in the United States that pays tribute to the local, state, and federal peace officers who have died, or who have been disabled, in the line of duty. It is celebrated May 15th of each year. The event is sponsored by the National Fraternal Order of Police (FOP) and is implemented by the FOP Memorial Committee.

The formal memorial is on May 15, and Police Week is the calendar week in which the memorial falls.

The holiday was created on October 1, 1961, when Congress authorized the president to designate May 15 to honor peace officers. John F. Kennedy signed the bill into law on October 1, 1962.