| Jamay | |
| Settlement Type: | Municipality and town |
| Mapsize: | 200px |
| Pushpin Map: | Mexico |
| Pushpin Label Position: | above |
| Pushpin Mapsize: | 300 |
| Pushpin Map Caption: | Location in Mexico |
| Subdivision Type: | Country |
| Subdivision Name: |  Mexico |
| Subdivision Type1: | State |
| Subdivision Name1: | Jalisco |
| Area Total Km2: | 174.49 |
| Area Blank1 Title: | Town |
| Area Blank1 Km2: | 3.41 |
| Population As Of: | 2020 census |
| Population Footnotes: | [1] |
| Population Total: | 24894 |
| Population Density Km2: | auto |
| Population Blank1 Title: | Town |
| Population Blank1: | 18607 |
| Population Density Blank1 Km2: | auto |
| Timezone: | Central Standard Time |
| Utc Offset: | -6 |
| Timezone Dst: | Central Daylight Time |
| Utc Offset Dst: | -5 |
| Coordinates: | 20.29°N -102.71°W |
The municipality and town of Jamay is located in the eastern portion of Jalisco, Mexico, at coordinates 20.29°N -144.6°W, at a height of above sea level. The municipality extends from 20° 25' to 20° 13' N, and from 102° 38' to 102° 44' W.
It covers 174.49 km2, representing 0.14% of the total surface area of the state. The municipality of Jamay adjoins to the north with the municipalities of Ocotlán and La Barca; to the east with the municipality of La Barca; to the south with the municipality of La Barca, the state of Michoacán and the municipality of Ocotlán; to the west with the municipality of Ocotlán and Lake Chapala.
The municipality has 17 towns, including Jamay (the municipal seat), San Miguel de la Paz, San Agustín, Maltaraña and Los Capulines.
Jamay is famous for a monument located in the center of the main square in memory of Pope Pius IX.Jamay is one of the fastest-growing municipalities in Jalisco, hosting pageants every independence day in September and major sporting events.