Oronogo is a city in Jasper County, Missouri, United States. The population was 976 at the 2000 census. It is part of the Joplin, Missouri Metropolitan Statistical Area. The name, according to local tradition, came about when it was found that the previous name, "Minersville" was already taken. At a public meeting to change the name, after considering many possibilities, a man in the back blurted out "its Ore or no go", referring to the mining operations. Elaborating on that, Colonel J. M. Young, suggested substituting the Spanish word "Oro" for ore, and the dropping the "or" to make the word euphonius. He pronounced it "Oronogo" and the audience accepted the name.
Oronogo is located at 37°11′25″N 94°28′2″W / 37.19028°N 94.46722°W / 37.19028; -94.46722 (37.190202, -94.467289).
According to the United States Census Bureau, the city has a total area of 2.0 square miles (5.3 km²), of which, 2.0 square miles (5.2 km²) of it is land and 0.04 square miles (0.1 km²) of it (1.47%) is water.