| Sanje ya Kati Island | |
| Pushpin Map: | Tanzania |
| Location: | Indian Ocean |
| Total Islands: | 1 |
| Major Islands: | 1 |
| Elevation M: | 14 |
| Country Admin Divisions Title: | Region |
| Country Admin Divisions: | Lindi Region |
| Ethnic Groups: | Machinga |
Sanje ya Kati Island or Kati Island is an island located in Pande Mikoma ward in Kilwa District in Lindi Region of Tanzania's Indian Ocean coast. The island is home to a medieval Swahili ruin of Sanje ya Kati. The island has an average elevation of .[1] The Island is the ancestral home of the Machinga people.[2]