Dayenu (Hebrew:דַּיֵּנוּ) is a song that is part of the Jewish holiday of Passover. The word "Dayenu" means approximately "it would have been enough for us", "it would have been sufficient", or "it would have sufficed". This traditional up-beat Passover song is over one thousand years old.

The song is about being grateful to God for all of the gifts he gave the Jewish people, such as taking them out of slavery, giving them the Torah and Shabbat, and had God only given one of the gifts, it would have still been enough.