| Ip massacre | |
|---|---|
 Hungarian troops marching in nearby Zalău, five days earlier | |
| Location | Ipp,  Kingdom of Hungary (present-day Ip, Sălaj, Romania) |
| Coordinates | 47°13′45″N 22°36′22″E / 47.22917°N 22.60611°E |
| Date | 13/14 September 1940 03:00 (CET) |
Attack type | genocide (targeted killing of the local ethnic Romanians), ethnic cleansing, reprisal |
| Weapons | Machine guns, rifles, revolvers, bayonets |
| Deaths | 152–158 ethnic Romanians + 16 reported deserters |
| Perpetrator | Royal Hungarian Army, locals, Nemzetőrség members |
The events of the Ip massacre escalated in the early hours of 14 September 1940, in Ipp, (today Ip, Sălaj County), Northern Transylvania. After two Hungarian soldiers died there in an accidental explosion, rumors spread that they had been killed by Romanians. After another incident the Royal Hungarian Army, influenced by the rumor, indiscriminately massacred around 150 ethnic Romanians in the nearby locations and surrounding areas.