| Thousand Lights Mosque | |
| Native Name: | ஆயிரம்விளக்கு மசூதி |
| Native Name Lang: | ta |
| Religious Affiliation: | Islam |
| Festivals: | --> |
| Organizational Status: | --> |
| Municipality: | Chennai |
| State: | Tamil Nadu |
| Country: | India |
| Map Type: | India Tamil Nadu |
| Map Size: | 220px |
| Map Relief: | yes |
| Coordinates: | 13.055°N 80.255°W |
| Architect: | Nawab Umdat ul umrah |
| Architecture Type: | mosque |
| Architecture Style: | medieval |
| Year Completed: | 1810 |
| Date Destroyed: | --> |
| Capacity: | 1,000 worshippers |
| Dome Quantity: | 5 |
| Minaret Quantity: | 2 |
| Elevation Ft: | --> |
Thousand Lights (ta|ஆயிரம்விளக்கு மசூதி) is a multi-domed mosque in Anna Salai in Chennai, Tamil Nadu, India, is one of the largest mosques in the country and is a revered place of worship and azadari for Shia Muslims in the city.
The mosque was built in 1810 by Arcot Nawab Umdat ul-Umara.[1] It was constructed in medieval architecture.[2] The site of the mosque was previously occupied by an assembly hall. There was a tradition of lighting thousand oil lamps to illuminate the assembly hall. The mosque thus gets its name from this tradition.[3]
The chief Shia Qazi of Chennai functions from the mosque, and the post has been continuously held by the same family.[1]