Salman bin Abdulaziz Al Saud (Arabic: سلمان بن عبد العزیز آل سعود, romanized: Salmān bin ʿAbd al-ʿAzīz Āl Su‘ūd ; born 31 December 1935) is King of Saudi Arabia, reigning since 2015 and had previously served as Prime Minister of Saudi Arabia from 2015 to 2022. The 25th son of King Abdulaziz, the founder of Saudi Arabia, he assumed the throne on 23 January 2015. Prior to his accession, he was Crown Prince of Saudi Arabia from 18 June 2012 to 23 January 2015. Salman is the 3rd oldest living head of state and the oldest living monarch besides being the country's first head of state born after the unification of Saudi Arabia. He has a reported personal wealth of at least $18 billion, which makes him the third wealthiest royal in the world and one of the wealthiest individuals in the world.

Salman is a son of King Abdulaziz and Hassa bint Ahmed Al Sudairi, making him one of the Sudairi Seven. He was the deputy governor of Riyadh and later the governor of Riyadh for 48 years from 1963 to 2011. He was then appointed minister of defense. He was named crown prince in 2012. Salman became king in 2015 upon the death of his half-brother, King Abdullah. Since July 2023, he is the oldest surviving son of King Abdulaziz.

Salman's major initiatives as king include the Saudi intervention in the Yemeni Civil War, Saudi Vision 2030, and a 2017 decree allowing Saudi women to drive. His seventh son, Crown Prince Mohammed bin Salman, is considered the de facto ruler of Saudi Arabia, due to the King's poor health and his own political maneuvering. Mohammed replaced his father as prime minister in 2022.