The Easter parade is an American cultural event consisting of a festive strolling procession on Easter Sunday. Typically, it is a somewhat informal and unorganized event, with or without religious significance. Persons participating in an Easter parade traditionally dress in new and fashionable clothing, particularly ladies' hats, and strive to impress others with their finery. The Easter parade is most closely associated with Fifth Avenue in New York City, but Easter parades are held in many other cities. Starting as a spontaneous event in the 1870s, the New York parade became increasingly popular into the mid-20th century—in 1947, it was estimated to draw over a million people. Its popularity has declined significantly, drawing only 30,000 people in 2008.

Easter processions or parades, often including special dress, have been part of Christian culture since its earliest beginnings. The Bible records two processions in the first Holy Week. The first was on Palm Sunday as Jesus was welcomed to Jerusalem by an adoring throng. The second took place as Jesus carried a cross to Calvary. These processions are often commemorated in Christian church services, and are seen as the earliest predecessors of the modern Easter parade.

During the Dark Ages, Christians in Eastern Europe would gather in a designated spot before Easter church services, then walk solemnly to the church. Sometimes the congregation would form another parade after the services, retracing their steps and singing songs of praise. These processions had two purposes—to demonstrate to churchgoers the unity of spirit found in their faith, and to reach out to nonbelievers in a highly visible manner. Even in those times, participants wore their finest attire to show respect for the occasion.

In the Middle Ages, the clergy expanded these processions into teaching tools. Paintings and statues would be placed along city streets, where church members could walk from one to another to see all the Stations of the Cross. To a public that had no access to the Bible and often could not understand the Latin language in which church services were conducted, these special processions were a means to understanding their faith.

Other parades have been held on important days during and close to Lent. An example can be found in today's parades on Mardi Gras. Beginning about 1782, German settlers in Pennsylvania held non-religious parades on Easter Monday, then widely celebrated as a holiday. The parades continued for over a century.

Having new clothes for Easter had deep roots in European customs. Sacred times called for special forms of dress—material markers of holiness and celebration. Distinctive garb for Easter, like one's "Sunday best" and the special vestments of priests, for centuries showed the solemnity and sacredness of the season.

Authorities attribute the introduction of elaborate Easter ceremonies, including gaudy dress and display of personal finery, to the Roman Emperor Constantine I in the early part of the 4th century, when he "ordered his subjects to dress in their finest and parade in honor of Christ's resurrection".

A superstition current in Tudor times held that unless a person had new homespun cloth available at Easter, moths and crickets would eat the old goods, and destructive rooks would nest in large numbers around the residence. An old Irish adage stated "For Christmas, food and drink; for Easter, new clothes," and a 15th-century proverb from Poor Robin's Almanack states that if on Easter Sunday some part of one's outfit is not new, one will not enjoy good luck during the year: