Sriharikota (Telugu: [ʃriːhɐɾikoːʈɐ]) is a barrier island off the Bay of Bengal coast located in the Shar Project settlement of Tirupati district in Andhra Pradesh, India. It houses the Satish Dhawan Space Centre, one of the two satellite launch centres in India (the other being Thumba Equatorial Rocket Launching Station, Thiruvananthapuram). ISRO launches satellites using multistage rockets such as the PSLV and the GSLV from Sriharikota. Sriharikota was selected by ISRO because of its proximity to the equator, it gives extra centripetal force from the rotation of Earth.

Sriharikota is partly located in Sullurpeta mandal and partly located in Tada mandal in Tirupati District in Andhra Pradesh. The island separates Pulicat Lake from the Bay of Bengal. The nearest town and railway station is Sullurpeta which is 16 km west of Sriharikota and nearest cities are Tirupati and Chennai . A 16 km elevated road connects Sriharikota to the mainland.

The climate of Sriharikota is tropical wet and dry. It is classified as Aw; bordering on As according to the Köppen–Geiger climate classification system. Sriharikota has hot summers and mild winters. Summers can reach up to 38 degrees Celsius, while winters can reach down to 20 degrees Celsius. Since Sriharikota is only 105 km north of Chennai, its climate is similar to that of Chennai.