Luis Paz Arce (19 August 1854 – 6 October 1928) was a Bolivian historian, journalist, jurist, lawyer, and politician who served on the Supreme Court of Justice of Bolivia for twenty-three years, an associate justice from 1905 to 1919 and as the president from 1919 until his death in 1928. A conservative, Paz held a lengthy political and academic background, serving in various legislative and ministerial positions from the early 1880s to the mid-1890s, including as minister of war from 1895 to 1896, minister of government from 1892 to 1895, and senator for Tarija from 1892 to 1898. In 1921, the National Convention selected him to be vice president under Bautista Saavedra, but he rejected the position, preferring to remain on the High Court.