Johanniter-Unfall-Hilfe e.V. (JUH; German for "St. John Accident Assistance"), commonly referred to as Die Johanniter, is a voluntary humanitarian organisation affiliated with the Brandenburg Bailiwick of the Order of St John, the German Protestant descendant of the Knights Hospitaller. The organisation was founded in 1952 in Hanover under the leadership of Rudolf Christoph Freiherr von Gersdorff. One of the main reasons for its creation was the rise in injuries and deaths from road traffic accidents (hence the word "accident" in its name). JUH participates in international aid efforts together with its sister organisations in other countries as part of the Johanniter International partnership; it also works with the German Malteser Hilfsdienst, affiliated to the Catholic Sovereign Military Order of Malta. As of 2008 the organisation had 28,300 active volunteers and youth members and around 1,500,000 registered members.
Among recent developments of JUH in Germany is the establishment of local and regional groups that provide first responder services on horseback (see Mounted search and rescue).