Wabash is a city in Noble Township, Wabash County, Indiana, United States. The population was 10,666 at the 2010 census. The city is the county seat of Wabash County.
Wabash is notable as being the first electrically lighted city in the world, which was inaugurated on March 31, 1880.
Wabash is located at 40°48′3″N 85°49′38″W / 40.80083°N 85.82722°W / 40.80083; -85.82722 (40.800799, -85.827163).