| Mastemoo | |
| Settlement Type: | Village |
| Pushpin Map: | India Uttar Pradesh#India |
| Pushpin Label Position: | right |
| Pushpin Map Caption: | Location in Uttar Pradesh, India |
| Coordinates: | 26.8111°N 81.0287°W |
| Subdivision Type: | Country |
| Subdivision Name: |  India |
| Subdivision Type1: | State |
| Subdivision Name1: | Uttar Pradesh |
| Subdivision Type2: | District |
| Subdivision Name2: | Lucknow |
| Unit Pref: | Metric |
| Population Total: | 2239 |
| Population As Of: | 2011 |
| Population Density Km2: | auto |
| Demographics Type1: | Languages |
| Demographics1 Title1: | Official |
| Demographics1 Info1: | Hindi |
| Timezone1: | IST |
| Utc Offset1: | +5:30 |
| Postal Code Type: | PIN |
| Postal Code: | 226002 |
Mastemoo is a village in Gosainganj block of Lucknow district, Uttar Pradesh, India.[1] In 2011, its population was 2239 in 344 households. It is administrated by gram panchayat.[2]