This article lists important figures and events in Malaysian public affairs during the year 1973, together with births and deaths of notable Malaysians.
7–8 February – A Malay farmer Idrus bin Hassan killed eight people and wounded four others in Batu Titian Akar near Rembau, Negeri Sembilan, before being shot dead by police.
18 October – 42 people, mostly Indians, were crushed to death when a 200-foot-long limestone slab fell off a cliff, collapsed and crashed onto a village at Gunung Cheroh, Ipoh, Perak.
Malaysia was only formed on September 16, 1963. Prior to that date, Peninsular Malaysia was known as Malaya, Sarawak under Crown Colony of Sarawak and Kingdom of Sarawak and Sabah under North Borneo.