Pacifism is the opposition or resistance to war, militarism or violence. Pacifists generally reject theories of Just War. The word pacifism was coined by the French peace campaigner Émile Arnaud and adopted by other peace activists at the tenth Universal Peace Congress in Glasgow in 1901. A related term is ahimsa, which is a core philosophy in Indian religions such as Hinduism, Buddhism, and Jainism. While modern connotations are recent, having been explicated since the 19th century, ancient references abound.

शांतिवाद (Pacifism) वह दर्शन है जो युद्ध एवं हिंसा का विरोध करती है। भारतीय धर्मों में 'अहिंसा' का जो दर्शन है वही शान्तिवाद है। आधुनिक युग में फ्रांस के एमाइल अर्नाद ने १९०१ में सबसे पहले यह शब्द उछाला था।