Texada Island is a large island located in the Strait of Georgia of British Columbia, Canada. With an area of 300.45 km² (116.00 mi²), it is the largest island of the Gulf Islands and the third largest island in the Strait of Georgia after Whidbey Island in Washington and Quadra Island of the Discovery Islands. Once a major mining and logging centre home to a fairly large population, Texada's industry has largely disappeared and its population shrank since the decline began in the 1950s. In the present, it is mostly recognized as an out-of-the-way cottage and camping destination known for its warm waters and scenic beaches.

Texada was named by the Spanish naval explorer José María Narváez for Felix de Tejada, a Spanish rear-admiral during the 1791 expedition of Francisco de Eliza. Narváez gave the name Isla de Texada to what is now called Lasqueti Island, and Islas de San Felix to Texada Island. The maps made by Eliza and Juan Carrasco in late 1791 moved the name "Texada" to the present Texada Island. At the time of Confederation the north end of the island became a fishing outport.

Copper was discovered at Van Anda about 1898 by Olive and Harry Treat creating the Cornell Mine rich in copper and gold. A smelter, tramway and town were constructed. The community was named after Carrie Van Anda, wife of American mining capitalist Edward Blewett. J. D. Rockefeller invested in the iron mines, though he quickly sold having lost money on a Monte Cristo, Washington venture near Everett. The iron mines were picked up by the famed Union Iron Works of San Francisco. Canadian investors Sir William Mackenzie and Donald Mann also speculated in the Van Anda mines. Farms, orchards, logging and a sawmill were set up on Texada at this time as well. By the turn of the century, the copper boom was in full swing but the mines only yielded for a few years. Van Anda hosted an opera house and a Chinatown. A series of fires demolished the Van Anda townsite—the last in 1917. Sail races were also run from Vancouver to Van Anda around this time.

Coastal ferries connected the island with the nearby cities of Vancouver and Nanaimo. The first ferry to the island, after the discontinued Union steamships, was the Atrevida. The Union Steamship Company of British Columbia steamship Cheslakee capsized off Van Anda on January 22, 1913, with the loss of seven lives. ^{[clarification needed]} The famous BC sternwheeler R.P. Rithet was beached in Stuart Bay in 1923.

On November 6, 2004, the tug Manson, skippered by Dusty Davison, sank off Texada Island.

Texada Island is largest of the Northern Gulf Islands at some 50 kilometres (31 mi) in length and 10 kilometres (6.2 mi) in width, with its length aligned along a northwest–southeast axis. The northern tip is located about 8 kilometres (5.0 mi) southwest of the city of Powell River and west of the Sechelt Peninsula on the Sunshine Coast. Texada is separated from the mainland and Nelson Island by Malaspina Strait on its northeast and from Lasqueti Island by Sabine Channel along its southwestern flank. Off its northwestern end it is separated from Ahgykson Island by Algerine Passage and is flanked by the Strait of Georgia on ¾ of its western side.

Other islands in the archipelago are Lasqueti, Jedediah, Ahgykson, Nelson, Hernando, and Savary Islands. Many smaller islands and rocks also dot the shoreline of Texada, particularly on the southwest shore.

The island's interior is completely forested and contains several mountains. Many lakes of various size also dot the Island with Priest Lake being the largest.