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Mardi Gras, Carnival
Celebrations in New Orleans, Louisiana, United States
Also called	Fat Tuesday, Shrove Tuesday, Pancake Tuesday
Type	Christian, Cultural
Significance	Celebration period before fasting season of Lent
Celebrations	Parades, parties
Date	Day before Ash Wednesday, 47 days before Easter
2017 date	February 28
2018 date	February 13
2019 date	March 5
Frequency	Annual
Related to	Shrove Tuesday; Carnival, Shrove Monday, Ash Wednesday, Lent, Užgavėnės, Maslenitsa, Valentine's Day

Mardi Gras (/ˈmɑːrdiɡrɑː/), also called Shrove Tuesday, or Fat Tuesday, in English, refers to events of the Carnival celebrations, beginning on or after the Christian feasts of the Epiphany (Three Kings Day) and culminating on the day before Ash Wednesday. Mardi Gras is French for "Fat Tuesday", reflecting the practice of the last night of eating richer, fatty foods before the ritual fasting of the Lenten season.

Related popular practices are associated with Shrovetide celebrations before the fasting and religious obligations associated with the penitential season of Lent. In countries such as England, Mardi Gras is also known as Shrove Tuesday, which is derived from the word shrive, meaning "confess".

In many areas, the term "Mardi Gras" has come to mean the whole period of activity related to the celebratory events, beyond just the single day. In some American cities, it is now called "Mardi Gras Day".

The festival season varies from city to city, as some traditions, such as the one in New Orleans, Louisiana, consider Mardi Gras to stretch the entire period from Twelfth Night (the last night of Christmas which begins Epiphany) to Ash Wednesday. Others treat the final three-day period before Ash Wednesday as the Mardi Gras. In Mobile, Alabama, Mardi Gras-associated social events begin in November, followed by mystic society balls on Thanksgiving, then New Year's Eve, followed by parades and balls in January and February, celebrating up to midnight before Ash Wednesday. In earlier times, parades were held on New Year's Day. Other cities famous for Mardi Gras celebrations include Rio de Janeiro; Barranquilla, Colombia; George Town, Cayman Islands; Port of Spain, Trinidad and Tobago; Quebec City, Quebec, Canada; and Mazatlán, Sinaloa, Mexico.