Chaitra (Hindi: चैत cait or चैत्र caitr) is a month of the Hindu calendar. In India's national civil calendar, Chaitra is the first month of the year, beginning on 22 March (or 21 March in leap years) and ending on 20 April. It is also the last month in the Bengali calendar (the Bônggabdo), where it is called Choitro, and in the Nepalese calendar (the Bikram Sambat), where it ends on April 13.

In lunar religious calendars, Chaitra may begin on either the new moon or the full moon around the same time of year, and is usually the first month of the year. The first of Chaitra – North Indian New Year, or Gudi Padwa – is an important festival, as is Ram Navami (9 Chaitra), the birthday of Lord Ram.

In solar religious calendars, Chaitra begins with the Sun's entry into Pisces, and is usually the last month of the year.