A new religious movement (NRM), also known as a new religion, is a religious or spiritual group that has modern origins and is peripheral to its society's dominant religious culture. NRMs can be novel in origin, or they can be part of a wider religion, in which case they are distinct from pre-existing denominations. Some NRMs deal with the challenges that the modernizing world poses to them by embracing individualism, while other NRMs deal with them by embracing tightly knit collective means. Scholars have estimated that NRMs number in the tens of thousands worldwide. Most NRMs only have a few members, some of them have thousands of members, and a few of them have more than a million members.
There is no single, agreed-upon criterion for defining a "new religious movement". Debate continues as to how the term "new" should be interpreted in this context. One perspective is that it should designate a religion that is more recent in its origins than large, well-established old religions like Hinduism, Judaism, Buddhism, Christianity, and Islam. Some scholars view the 1950s or the end of the Second World War in 1945 as the defining time, while others look as far back as the founding of the Latter Day Saint movement in 1830 and of Tenrikyo in 1838.