Plehn

Plehn is a surname. Notable people with the surname include:


 * Carl C. Plehn (1867–1945), American economist
 * Elsbeth Plehn (1922–2001), German operatic contralto and voice teacher
 * Marianne Plehn (1863–1946), German zoologist
 * Michael T. Plehn (born 1965), lieutenant general in the United States Air Force