A temple is a place of worship, a building used for spiritual rituals and activities such as prayer and sacrifice. By convention, the specially built places of worship of some religions are commonly called "temple" in English, while those of other religions are not, even though they fulfill very similar functions. The religions for which the terms are used include the great majority of ancient religions that are now extinct, such as the Ancient Egyptian religion and the Ancient Greek religion. Among religions still active: Hinduism, Buddhism(whose temples are called Vihar), Sikhism, Jainism, Zoroastrianism, the Baha'i Faith, Taoism, Shinto, Confucianism.

A place of worship is a specially designed structure or space where individuals or a group of people such as a congregation come to perform acts of devotion, veneration, or religious study. A building constructed or used for this purpose is sometimes called a house of worship. Temples, churches, mosques, and synagogues are examples of structures created for worship. A monastery may serve both to house those belonging to religious orders and as a place of worship for visitors. Natural or topographical features may also serve as places of worship, and are considered holy or sacrosanct in some religions; the rituals associated with the Ganges river are an example in Hinduism.