May devotions to the Blessed Virgin Mary refer to special Marian devotions held in the Catholic Church during the month of May honoring Mary, mother of God, as "the Queen of May". These services may take place inside or outside. A "May Crowning" is a traditional Roman Catholic ritual that occurs in the month of May.

In the British Isles and parts of the Commonwealth, the May Queen or Queen of May is a personification of the May Day holiday of 1 May, and of springtime and the coming growing season. The May Queen is a girl who rides or walks at the front of a parade for May Day celebrations. She wears a white gown to symbolise purity and usually a tiara or crown. Her duty is to begin the May Day celebrations. She is generally crowned by flowers and makes a speech before the dancing begins. Certain age-groups dance around a Maypole celebrating youth and springtime.