Sir Baber Shumsher Jung Bahadur Rana, GCVO, GBE, KCSI, KCIE (27 January 1888 – 12 May 1960) was a member of the Rana dynasty who served as the Minister of Defence of Nepal in 1951. A prominent member of the Rana oligarchy, he fought valiantly in the First World War. He was the second son of Maharaja Sir Chandra Shamsher Jang Bahadur Rana and Bada Maharani Chandra Loka Bhakta Lakshmi Devi. He was the younger brother of Maharaja Sir Mohan Shamsher Jang Bahadur Rana and older brother of Field Marshal Sir Kaiser Shamsher Jang Bahadur Rana.