Guindy National Park, National park in Chennai, India

Guindy National Park is a 2.70 km2 protected area inside Chennai, an extension of the grounds of Raj Bhavan, the Governor of Tamil Nadu's residence. It holds dry evergreen scrub and thorn forest, grassland, the Tangal Eri lake, two tanks named Kathan Kollai and Appalam Kolam, and a cleared meadow called Polo Field, about 230 by 160 m. A 9.5 km perimeter wall encloses it, with some 14 km of roads and trails inside.

In the early 1670s Governor William Langhorne carved a garden from the forest and built Guindy Lodge there. The government bought the remaining forest from Gilbert Rodericks in 1821 for ₹35,000, and in 1910 the original 505 hectares became a Reserve Forest. Between 1961 and 1977 about 172 hectares went to IIT Madras, the Rajaji and Kamaraj memorials and other institutions; the rest was declared a national park in 1978.

The park takes its name from Guindy, the Chennai locality around it. Its former Guindy Deer Park section became the Guindy Snake Park and Children's Park next door, and the Polo Field, about 230 by 160 metres, recalls the grounds' recreational past.

The park is enclosed by a 9.5 km perimeter wall, with about 14 km of roads and trails inside; the gate carries the names in Tamil and Latin script. The Snake Park and Children's Park sit in the same premises beside the park. January to March is the dry season, and the two ponds usually dry up in summer.

Antelopes and deer share the grounds here in the middle of a major city, which rarely happens in Indian metropolises. The animals move freely between water holes and clearings and can be observed at close range.