Kalpa may refer to:

• A work in Sanskrit, meaning "practicable, feasible, possible", and also "proper, fit, able", from a root "to be well ordered or regulated"
• Kalpa (Vedanga) "proper practice", "ritual", one of the six disciplines of Vedanga in Hinduism
• Kalpa (Buddhism) in Buddhist and Hindu cosmology, a fabulous time period (4,320 million years): see also Hindu units of measurement
• Kalpa, Himachal Pradesh, a town in Himachal Pradesh, India