Bill Rudman

William B. "Bill" Rudman (born 1944) is a malacologist from New Zealand and Australia. In particular he studies sea slugs, opisthobranch gastropod molluscs, and has named many species of nudibranchs.

Rudman has a PhD from the University of Auckland, gained with a thesis on bullomorph opisthobranchs. Rudman ran the Sea Slug Forum, a website affiliated with the Australian Museum. In Rudman's words, the forum "aims to generate more interest in these fascinating animals by sharing information with a worldwide audience.". Sea Slug Forum has information and numerous images of nudibranchs, bubble-snails, sea hares and other kinds of sea slugs. It was discontinued in 2010 after 14,523 messages had been posted. It is still online as a resource, but not accepting new messages.

Taxa
Species named in honour of this malacologist include:
 * Aplysia rudmani Bebbington, 1974
 * Cadulus rudmani Lamprell & Healy, 1998
 * Hypselodoris rudmani Gosliner & R. F. Johnson, 1999
 * Phyllidiella rudmani Brunckhorst, 1993
 * Phyllodesmium rudmani Burghardt & Gosliner, 2006
 * Trapania rudmani M. C. Miller, 1981

The World Register of Marine Species (WoRMS) lists 186 marine species named by Rudman.