Harry Forbes Witherby, MBE, FZS, MBOU was a noted British ornithologist, author, publisher and founding editor of the magazine British Birds.

Witherby Publishing Group, formerly known as Witherby Seamanship, is a technical publisher of maritime, nautical and navigation training, reference and regulatory materials. The company is the resulting merger of Witherby Books and Seamanship International in January 2008. Beginning with its origins in 1740 it lays claim to being the oldest independent publisher in the English-speaking world.