Thoreau \th(o)-reau\ as a boy's name. Possibly French form of Thorald. The name is made famous by the 19th-century naturalist and author of "Walden" Henry David Thoreau.

Baby names that sound like Thoreau are Dureau, Thor, Tore, Torey and Toru. Other similar baby names are Thorian, Thole, Thoma, Thorin, Thorley, Thorne, Thorn, Thorpe, Thorp and Thobey.