What do you call the party that's thrown after a wedding?

The party thrown after a wedding is called a reception. It is the social celebration held after the marriage ceremony, where the newly married couple welcomes family, friends, and other guests as a married couple for the first time.

A reception commonly includes a meal, drinks, music, dancing, speeches, photographs, and the cutting of a wedding cake. The format can vary widely: some couples choose a formal evening dinner, while others hold a luncheon, brunch, afternoon tea, or a casual outdoor gathering.

The word “reception” comes from the idea of receiving guests. Historically, weddings were also followed by events such as wedding breakfasts or wedding balls. During the 20th century, “reception” became the broad term for nearly any celebration following the ceremony. A reception does not have to occur immediately afterward, and it can even be held on a different day from the wedding.