Hewlett or Hewletts may refer to:

Bill Hewlett, an American entrepreneur Hewlett (surname) Hewlett Johnson (1874-1966), English clergyman, Dean of Manchester and Dean of Canterbury Hewlett Thompson (born 1929), Anglican former Bishop of Exeter Hewlett, New York, a hamlet and census-designated place Hewletts Creek, a stream in North Carolina Hewlett House (Cold Spring Harbor, New York), on the National Register of Historic Places

See also Hewlett-Packard, a technology corporation