| Country: | IND |
| Type: | SH |
| State: | Kerala |
| Route: | 40 |
| Alternate Name: | Alappuzha – Madurai Road |
| Map Custom: | yes |
| Map Notes: | SH 40 highlighted in red |
| Maint: | Kerala Public Works Department |
| Length Km: | 114.815 |
| Direction A: | West |
| Junction: |
|
| Direction B: | East |
| Terminus B: | /TN-MDR 90 in KL/TN border at Cumbummettu |
| Districts: | Alappuzha, Kottayam, Ernakulam, Idukki |
| Previous Type: | SH |
| Previous Route: | 39 |
| Next Type: | SH |
| Next Route: | 41 |
State Highway 40 (SH 40) is a State Highway in Kerala, India that starts in Alappuzha and ends in Madurai, Tamil Nadu, India . The highway is 183 km long.[1]
Alappuzha – Muhamma – Thanneermukkam – Vechur Bund Road – Kallara– – Manjoor– Kuruppanthara– Thalayolaparambu – Peruva – Mutholapuram -Koothattukulam –Marika - Vazhithala – Kolani – Thodupuzha – Vandamattom -Kodikulam - Chalakkamukku - Kaliyar- Vannappuram – Kanjikuzhy -Murickassery - Thopramkudy -Nedumkandam - Thookkupalam - Cumbummettu