| Monnett, Ohio | |
| Settlement Type: | Unincorporated community |
| Pushpin Map: | Ohio |
| Pushpin Label: | Monnett |
| Pushpin Map Caption: | Monnett's location in Ohio |
| Coordinates: | 40.7175°N -83.04°W |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Ohio |
| Subdivision Type2: | County |
| Subdivision Name2: | Crawford County |
| Subdivision Type3: | Township |
| Subdivision Name3: | Dallas |
| Established Title: | founded |
| Founder: | Ephraim Monnett, Oliver Monnett, Mervin J. Monnette |
| Unit Pref: | Metric |
| Elevation Ft: | 974 |
| Population Total: | 45 |
| Population As Of: | June 2017 |
| Population Density Km2: | auto |
| Population Note: | estimated |
| Postal Code Type: | ZIP Code |
| Postal Code: | 43302 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 1065045 |
Monnett is an unincorporated community in Dallas Township, Crawford County, Ohio, United States. The zipcode assigned to Monnett by the United States Postal Service is 43302, a Marion county zipcode, although Monnett is located inside Crawford County.The population of Monnett (located between both Monnett signs on SR 294) as of 2017 is roughly between 40-45 residents.
Monnett was established as a livestock loading stop by brothers Ephraim, Oliver and Mervin J. Monnett (some sources list as Monnette after 1900) along the Toledo and Ohio Central Railway in the 1870s. The Monnett family was Crawford County's largest land owning family between 1860 and 1880, and their cattle shipments to Toledo and Chicago were large enough to make overland drives to Bucyrus impractical. The establishment of Monnett allowed them to ship directly from the heart of their holdings.
The community at one time was home to the Dallas Township School before it was consolidated with Mt. Zion School.The United States Postal Service once operated a Monnett substation for general mail delivery and outgoing mail. The community also provided local farmers with access to a general merchandise store through the early 20th century.
Dallas Township Volunteer Fire Department is located in the center of Monnett.
Monnett is located on Monnett New Winchester Road, Ohio State Route 294, about mid way between OH State Rt. 4 and OH State Rt. 98.