Luis del Porto Seguro Ovalle

Luis del Porto Seguro Ovalle (1869 – 3 December 1939) was a Chilean politician and diplomat who served as a member of the Chamber of Deputies of Chile. He was born in Vienna, the son of Francisco Adolfo de Varnhagen, Viscount of Porto Seguro, and Carmen Ovalle Vicuña.

A member of the Liberal Party, he represented Petorca and La Ligua in the Chamber of Deputies from 1903 to 1906 and again from 1915 to 1921. He served on several parliamentary commissions, including those of Government, Public Works, Public Assistance and Worship, and Finance. He later pursued a diplomatic career, serving as Chilean minister to Germany from 1928 to 1934 and subsequently as ambassador to Germany. In 1934, he served as president of the Liberal Party.