This is a worldwide list of accidents involving trams (or streetcars in U.S. English) in which there was significant damage to the tramcar, or involving severe injury or death to those in the tramcar. Pedestrian fatalities are outside the scope of this list.
Argentina
On 12 July 1930, electric tram no. 75 on Line 105 travelling from Temperley to Lanús in Greater Buenos Aires, Argentina, plunged into the Matanza River when the driver attempted to cross the Bosch Bridge without realising that the central bascule was raised. 56 out of 60 passengers died and only 4 survived, making this the deadliest tram accident anywhere in the world.
Australia
In January 1864, well-known Anglo-Australian musician and composer Isaac Nathan was hit and killed by a Sydney horse tram when his clothing was caught in the door, whilst he was attempting to alight. Nathan is reputed to be one of the first tram fatalities in the Southern Hemisphere (many sources claim that it was the first such accident). On 28 September 1913, a Rockhampton steam tram and its trailer capsized on a sharp bend while returning from the Rockhampton Botanic Gardens resulting in three fatalities. One man died instantly, while two women later died from their injuries in hospital. On 21 August 1924, a coupled set of Sydney tram E-class cars ran out of control near McMahon's Point, derailed and crashed into a house. There were two fatalities, and the trams were extensively damaged. On 22 May 2017, a Melbourne tram was hit by a truck in Parkville, hospitalising 14.
Austria
On 2 August 1960, a tram ran away in Vienna, Austria and collided with another at a crossroads. Eighteen people were killed and 104 were injured. On 21 April 2015, twelve people were injured after two trams collided in Vienna.
Brazil
On 27 August 2011, a Santa Teresa Tram in Rio de Janeiro, Brazil derailed, killing six people and injuring at least fifty.
Canada
On 26 May 1896, in Victoria, British Columbia, Canada, a Consolidated Electric Railway Company tram car carrying 143 people plunged into a harbour after the bridge it was crossing collapsed. The disaster killed 55 people and left an unknown number of others injured. On 7 July 1915, a severely overloaded Niagara Falls Park and River Railway open-sided car went out of control while descending the Niagara Escarpment near Queenston, Ontario. Fifteen people died, and many others were injured. On 11 December 1944, a major snowstorm caused a Toronto Transportation Commission streetcar to overturn near Queen and Mutual Streets. One person was killed, and 50 injured.
Croatia
On 31 October 1954, a Zagreb tram ran away down Mirogoj Road and crashed. Nineteen people were killed and 37 were injured.
Czech Republic
On 11 April 2008, two Ostrava trams crashed in a head-on collision in a single-track section of the Ostrava-Poruba – Kyjovice-Budišovice tram line near Vřesina. Three people were killed and 66 were injured. The tram driver of one of the trams, who ignored a stop signal, was later sentenced to three years in prison for reckless driving.
Finland
On 15 September 1920, a Vyborg tram derailed and overturned at a junction. Five people, including the tram driver and a pedestrian, were killed and at least 10 were injured. On 15 June 1945 a freight train collided with a Helsinki tram in Sörnäinen harbour. 6 passengers were injured. On 13 September 2007 a Helsinki tram caught fire next to Pasila railway station. Nobody was injured but the tram suffered heavy damages.