Otowi Historic District, Historic district in Santa Fe County, United States

The Otowi Historic District is a 29-acre historic district on the west bank of the Rio Grande at the head of White Rock Canyon in northern Santa Fe County, New Mexico. It has four contributing buildings and three contributing structures, including the single-lane Otowi Suspension Bridge built in 1924.

The area began in 1886 as a railroad stop along the narrow-gauge Santa Fe Branch line. The settlement grew as a supply point and rest station for train traffic through this remote part of New Mexico.

Otowi comes from the Tewa name P'otsuwi'i, meaning "gap where water sinks," for the spot on the Rio Grande at the head of White Rock Canyon. The name was chosen by the US Post Office Department in 1923 after "Los Alamos" was rejected as already in use. Edith Warner, postmistress and shopkeeper from 1921, later hosted tearooms there that drew Manhattan Project scientists.

The district is accessible via New Mexico State Road 502 in a rural setting with few nearby services. Visitors should plan to explore the site on foot and bring water, especially during warmer months.

Edith Warner, postmistress and shopkeeper at Otowi from 1921, later hosted tearooms there that drew scientists from the Manhattan Project. Peggy Pond Church's 1959 memoir The House at Otowi Bridge chronicles Warner's life at the site through 1951.