Louis Delaporte (Loches, January 11, 1842 – Paris, May 3, 1925) was a French explorer and artist, whose collection and documentation of Khmer art formed the nucleus of exhibitions in Paris, originally at the 1878 Paris Exposition and later at the Palais du Trocadéro, where he became chief curator of the Musée Indochinois. In 1927, after his death, his collection was moved to the Guimet Museum.
The first systematic exploration of the Mekong River, considered "the wildest of the world's great rivers," was the French Mekong expedition led by Ernest Doudard de Lagrée and Francis Garnier, which ascended the river from its mouth to Yunnan between 1866 and 1868. Delaporte, a young naval officer, was chosen because of his talent in drawing to accompany them through what was then French Indochina.
This expedition took the young artist to Angkor Wat. Years later, in his 1880 book Voyage au Cambodge, Delaporte recorded his impressions:
The sight of these strange ruins struck me, too, with a keen astonishment, I admired the bold and grandiose design of these monuments no less than the perfect harmony of all their parts. Khmer art, issuing from the mixture of India and China, purified, ennobled by artists whom one might call the Athenians of the Far East, has remained the most beautiful expression of human genius in this vast part of Asia that extends from the Indus to the Pacific.
The detailed drawings Delaporte made on this voyage were used to illustrate Garnier's 1870 account of the voyage. Many years later, during the 1930s, drawings Delaporte had made at That Luang became the basis for a major reconstruction of that important religious site near Vientiane. In particular, the first rebuild gave the stupa a shape that locals found unattractive; based on Delaporte's drawings it was restored to its original lotus-bud design.
The expedition was plagued by disasters and difficulties, including many miles of wading barefoot through knee-deep mud infested with leeches. Nevertheless, the team surveyed and mapped 6,000 km, charting the Mekong's course from its mouth in present-day Vietnam through present-day Cambodia, Thailand, Laos, and Burma into China. At the end of the journey, Delaporte returned to France, where he was promoted to the rank of ship's lieutenant and awarded the Légion d'Honneur.