Lapham may refer to:
People Bill Lapham (1934–2016), American football player Dave Lapham (born 1952), former player and current announcer for the NFL Cincinnati Bengals David Lapham (born 1970), cartoonist Elbridge G. Lapham (1814–1890), New York politician Increase A. Lapham (1811–1875), nineteenth century author and scientist Lewis H. Lapham (1935-2024), contemporary writer Nathan Lapham (1820–1890), New York politician Robert Lapham American guerrilla in the Philippines during WWII Roger Lapham (1883–1966), businessman and politician Seneca Lapham, a fictional character in the list of Cthulhu Mythos biographies Silas Lapham, the protagonist of William Dean Howells' novel The Rise of Silas Lapham Smith Lapham, an early settler of Rockford, Michigan
Places United States Lapham, former name of Stateline, California Lapham Peak Unit, Kettle Moraine State Forest, Wisconsin state park Lapham Memorial, public artwork on the University of Wisconsin–Milwaukee campus Lapham Mills, a hamlet northeast of Peru, New York Lapham Institute, from 1863 to 1876 the name of what is now the Smithville Seminary, a Free Will Baptist institution in Rhode Island