Roberts Mūrnieks (4 July 1952 – 16 January 1991) was the first person killed by Soviet OMON during the Barricades in 1991 in Latvia.

Mūrnieks was born on 4 July 1952 in Pelši, Preiļi District in the Latvian Soviet Socialist Republic, which today is Latvia.

[1] In 1991, Mūrnieks was working for the Ministry of Transport as a driver, when he was shot in the head near Vecmīlgrāvis bridge during the events of the Barricades.

[2] On 17 January, the Supreme Council of Latvia expressed condolences for Mūrnieks' death, saying it was as a result of banditry by a militia unit of the Ministry of Internal Affairs of the USSR, and created a commission to organise his funeral.

He was buried in Mārupe Cemetery, and his funeral became a focal point of popular protest.