Vidalia onions were first grown near Vidalia, Georgia in the early 1930s. Today the name refers to onions grown in a 20-county production region in the state of Georgia as defined by both state Georgia and federal law United States Code of Federal Regulations (CFR). Arguably, they are the most famous sweet onions in America. The Sunbrero (Nevada) Sweet Onion is grown in Nevada and distributed by Sweet Onion Trading Company, Palm Bay, Florida.

The Carzalia Sweet onion is a variety of sweet onion grown by Carzalia Valley Produce in Columbus, New Mexico. The Sunbrero (Texas) Sweet Onion is grown in Texas and distributed by Sweet Onion Trading Company, Palm Bay, Florida. The Walla Walla Sweet Onion originated on the island of Corsica, off the west coast of Italy. The Sweetie Sweet is a variety of sweet onion grown in the Mason Valley in Yerington, Nevada. The Sweetie Sweet onion can be found in marketplaces throughout the U.S. from September through the end of January. The Glennville sweet onion is grown in Tattnall County, in Glennville, Georgia.