Luis A. Eguiguren was born in the historical San Francisco Street (now Lima Street), in the city of Piura. He was the son of Francisco Jose Eguiguren Escudero, honest judge, congressman, Secretary of Justice and President of the Supreme Court in 1913 and 1914, and the distinguished lady Josefina Escudero Menacho. Between 1893 and 1902, he studied at Colegio San Miguel de Piura School and then at Colegio La Inmaculada(The Jesuit Fathers School) in Lima (1902–1904). He got into the Universidad Nacional Mayor de San Marcos, where he chose the academic degrees of Doctor of Letters (1913), in Jurisprudence with the thesis "The Peruvian ayllu legal status" (1914), and Political and Administrative Science (1914). His thesis of Bachelor of Political and Administrative Sciences was titled: "The Role of students in Political life”, and his doctoral thesis: "The need for a diplomatic tradition in Peru".