National Prime Rib Day Calendar Add to Calendar Add to Timely Calendar Add to Google Add to Outlook Add to Apple Calendar Add to other calendar Export to XML When: April 27, 2020 all-day Repeats 2020-04-27T00:00:00-05:00 2020-04-28T00:00:00-05:00 Where: National Prime Rib Day United States NATIONAL PRIME RIB DAY National Prime Rib Day is observed annually on April 27th. Sometimes known as the “King of Meats,” Prime Rib is a choice cut from one of the eight prime cuts of beef.