| Thimmanahalli | |
| Native Name: | Kaayi Thimmanahalli |
| Settlement Type: | Village |
| Pushpin Map: | India Karnataka#India |
| Pushpin Label Position: | right |
| Pushpin Map Caption: | Location in Karnataka, India |
| Coordinates: | 13.5424°N 76.6613°W |
| Subdivision Type: | Country |
| Subdivision Name: |  India |
| Subdivision Type1: | State |
| Subdivision Type2: | District |
| Subdivision Name1: | Karnataka |
| Subdivision Name2: | Tumkur |
| Unit Pref: | Metric |
| Elevation M: | 822 |
| Population Total: | 6000 |
| Population As Of: | 2001 |
| Population Density Km2: | auto |
| Demographics Type1: | Languages |
| Demographics1 Title1: | Official |
| Timezone1: | IST |
| Utc Offset1: | +5:30 |
| Postal Code Type: | PIN |
| Postal Code: | 572228 |
| Area Code: | 08133 |
| Area Code Type: | Telephone code |
| Registration Plate: | KA-44 and KA-06 |
| Demographics1 Info1: | Kannada |
Thimmanahalli is a village in Chikkanayakanahalli, a town in Tumkur District. Its estimated population is about 5500-6000. Thimmanahalli is also known as Kaayi Thimmanahalli.
In 18th century, Thimmarasu Nayaka built fort at the site & established it as a province of the empire. The remnants of Fort could be found adjacent to Bandi-Mane (Bandimane) near Eshwar Temple. The prime crops that are grown in Thimmanahalli are coconut's Araca nut, paddy & ragi. It is famous for coconuts and sometimes referred to as Kaayi Thimmanahalli.
The residents of Thimmanahalli are primarily Hindu, Muslim, and Christian and the village is home to Temples, a Mosque and a Church.