The Rann of Kutch is a large area of salt marshes that span the border between India and Pakistan.

It is located mostly in the Kutch district of the Indian state of Gujarat, with a minor portion extending into the Sindh province of Pakistan.

It extends east and west, with the Thar Desert to the north and the low hills of Kutch to the south.

Many rivers originating in Rajasthan and Gujarat flow into the Rann of Kutch, including the Luni, Bhuki, Bharud, Nara, Kharod, Banas, Saraswati, Rupen, Bambhan, and Machchhu.

The surface is generally flat and very close to sea level, and most of the Rann floods annually during the monsoon season.

The Rann of Kutch is dry for most of the year, and rainfall is concentrated in the June to September monsoon season.

Common grass species include Apluda aristata, Cenchrus spp., Pennisetum spp., Cymbopogon spp., Eragrostis spp., and Elionurus spp.

The non-native tree Prosopis juliflora has become established on the bets, and its seed pods provide year-round food for the wild asses.

They include several large herbivores, including Indian wild ass (Equus hemionus khur), chinkara (Gazella bennettii), nilgai (Boselaphus tragocamelus), and blackbuck (Antilope cervicapra), and large predators like wolf (Canis lupus), striped hyena (Hyaena hyaena), desert wildcat (Felis lybica), and caracal (Felis caracal).

The seasonal wetlands provide habitat for many water birds, including the demoiselle crane (Grus virgo) and lesser flamingo (Phoeniconaias minor).

The Indus Civilization was known to have an extensive maritime trade system, so it has been proposed by Gaur et al. that there were perhaps ports in the Rann of Kutch.