Auguste Jean-Marie Pavie (31 May 1847 – 7 June 1925) was a French colonial civil servant, explorer and diplomat who was instrumental in establishing French control over Laos in the last two decades of the 19th century. After a long career in Cambodia and Cochinchina, Pavie became the first French vice-consul in Luang Prabang in 1886, eventually becoming the first Governor-General and plenipotentiary minister of the newly formed French colony of Laos.

Born in Dinan in Brittany, the son of a cabinet maker, Auguste Pavie did not have the usual makings of a diplomat. He had no training at all either as a military officer or in the grandes écoles. Instead, drawn by the prospect of adventure in distant lands, he joined the army in 1864 at the age of seventeen. In 1869, he was posted to Cochinchina as part of the Marine Infantry. He was called back for military service in France the following year during the Franco-Prussian war, where he reached the rank of sergeant-major. In 1871 he returned to Cochinchina as part of the local administration of the postal and telegraphic service. In 1876 he was put in charge of a small telegraphic office in the remote Cambodian port of Kampot, where he served for three years.

In constant contact with the natives, I got used to the idea of living completely amongst them.

The posting at Kampot gave Pavie the opportunity to gain an in-depth knowledge of the Indochinese, their culture and language. One of very few Europeans in this settlement on the Kampot River beneath the Elephant Mountains, he "went native", mastering Cambodian, walking bare-foot and sporting a wide-brimmed hat, as he charted the backlands of Cambodia, recording all that he found of interest. Pavie's approach prompted mixed reactions: his immersion in Cambodian life was criticized by French officials in Cochinchina; however, a French officer remarked at the time that "beneath an appearance of physical weakness, there was a wealth of intelligence put to work with an energy and strength of will without equal." During this period, Pavie supervised the building of a telegraphic line between Phnom Penh and Kampot.

In 1879, Pavie came to the attention of Charles Le Myre de Vilers, governor of Cochinchina and closely involved with the colonial lobbyists in France. Pavie became his protégé and was entrusted to lead a five-year expedition to explore the region extending from the Gulf of Siam to the great freshwater lake Tonlé Sap in Cambodia and beyond to the Mekong River. During this period he honed his skills of observation that would stand him in good stead for future missions as explorer and diplomat. These were the so-called "Missions Pavie" conducted over the 16-year period 1879-1895 during which Pavie, accompanied by his assistants, and his Khmer interpreter Thiounn, he would explore the whole Indochinese Peninsula. At the end of his first mission, Pavie was put in charge of building a telegraphic line between Phnom Penh and Bangkok, a major project.

So impressed were his superiors by his skills in managing this major project, that Pavie was transferred to the diplomatic service as the first vice-consul in Luang Prabang in 1886. Pavie's appointment reflected the desire of the French to continue their colonial expansion in Indochina and their rivalry with Britain, the other main colonial power in the region. The British had already preempted French expansion into Burma with the Third Anglo-Burmese War; the new French diplomatic office in Luang Prabang was a concession by the Siamese amid continuing demands to apportion territories bordering the Mekong River. Pavie was enchanted by his new posting:

Conquered and charmed, an impression remains with me: dry fishermen's nets strung up along scaffolding; boats pulled half out of the water onto the strand; rafts crossing noisily over the Nam Khan's rapids into the Mekong; white and gold pagodas roofed with coloured varnished tiles; tall houses built in wood and huts constructed with palm leaves, their roofs covered with thin strips of bamboo; lightly dressed men and women climbing up and down the muddy and steeply rising banks between small gardens and providing an appropriate splash of colour; as a final note, and not too far distant, high mountains, dark green in colour, with tufts of cloud rising from the Nam Khan and dispersing about them.

Pavie went on to become consul in 1886 and consul general in 1891. In 1887, Luang Prabang was sacked by Chinese and T'ai bandits, hoping to liberate the sons of their leader Đèo Văn Trị, held prisoner by the Siamese; Pavie prevented the capture of the ailing local ruler Oun Kham by ferrying him away from the burning city to safety in Bangkok, Siam, thereby winning his gratitude and building his trust in French colonial plans, which were to be one of Pavie's major preoccupations from 1888 onwards. Pavie subsequently established friendly relations with Deo Van Tri, negotiating the release of his brothers; as a result a protectorate treaty was signed with the French in 1889 making Deo Van Tri Lord of Lai Châu, the main town in the Sip Song Chau Tai alliance located in the Black River region of Tonkin that he controlled. Pavie referred to this kind of diplomacy as la conquête des coeurs [the winning of hearts], which became the title of his autobiography.