The largest district of Gujarat by area is:

Kutch
Saurashtra
Banaskantha
Panchmahal

The largest district of Gujarat by area is Kutch. It is located in the northwestern part of the state and has a total area of 26,244 square kilometers. The district is known for its salt marshes, sand dunes, and wildlife sanctuaries. It is also home to the Great Rann of Kutch, the largest salt marsh in the world.

Saurashtra is the second largest district in Gujarat, with a total area of 19,624 square kilometers. It is located in the western part of the state and is home to the Gir Forest National Park, the only place in the world where Asiatic lions are found in the wild.

Banaskantha is the third largest district in Gujarat, with a total area of 19,160 square kilometers. It is located in the northern part of the state and is known for its fertile plains and agricultural produce.

Panchmahal is the fourth largest district in Gujarat, with a total area of 12,994 square kilometers. It is located in the central part of the state and is home to the Narmada Dam, one of the largest dams in the world.

In conclusion, the largest district of Gujarat by area is Kutch. It is located in the northwestern part of the state and has a total area of 26,244 square kilometers. The district is known for its salt marshes, sand dunes, and wildlife sanctuaries. It is also home to the Great Rann of Kutch, the largest salt marsh in the world.