"For He's a Jolly Good Fellow" is a popular song that is sung to congratulate a person on a significant event, such as a promotion, a birthday, a wedding, a retirement, a wedding anniversary, the birth of a child, or the winning of a championship sporting event. The melody originates from the French song "Malbrough s'en va-t-en guerre".

"Malbrough s'en va-t-en guerre", also known as "Mort et convoi de l'invincible Malbrough", is a folk song in French.