Witmer

Witmer may refer to:


 * Witmer, Pennsylvania, a census-designated place
 * Witmer Lake, a lake in Indiana

People with the given name

 * Witmer Stone (1866–1939), American ornithologist, botanist, and mammalogist

People with the surname

 * Charles B. Witmer (1862–1925), U.S. federal judge
 * Denison Witmer, American songwriter
 * Elizabeth Witmer (born 1946), Canadian politician
 * Jill Witmer (born 1991), American field hockey player
 * John Witmer (1951–2004), Canadian musician
 * Lawrence Witmer (born 1959), American paleontologist and paleobiologist
 * Lightner Witmer (1867–1956), American psychologist
 * Tamara Witmer (born 1984), American model and actor