David Kaplan or Dave Kaplan may refer to:
Academics David B. Kaplan (born 1958), theoretical particle physicist, professor at the University of Washington David E. Kaplan (physicist), theoretical particle physicist, professor at the Johns Hopkins University David L. Kaplan (composer) (1923–2015), Canadian music professor and conductor David L. Kaplan (engineer) (born 1953), American biomedical engineer, professor at Tufts University David Kaplan (philosopher) (born 1933), American philosopher and professor at the University of California, Los Angeles Dovid Kaplan, senior lecturer at Ohr Somayach, Jerusalem, author and speaker
Writers David A. Kaplan (born 1956), American writer and journalist David E. Kaplan (journalist) (born 1955), American investigative journalist and author
Others David Kaplan (filmmaker), American film director Dave Kaplan (fighter) (born 1979), American mixed martial artist Dave Kaplan (music executive), American music executive David Kaplan (pianist) (born 1983), American classical pianist and chamber musician David Kaplan (producer) (c. 1947–1992), ABC television news producer killed in Yugoslavia David Kaplan (radio) (born 1960), American radio host
See also David Caplan (1964–2019), Canadian politician