Big Numbers is an unfinished graphic novel by writer Alan Moore and artist Bill Sienkiewicz. In 1990 Moore's short-lived imprint Mad Love published two of the planned twelve issues; the series was picked up by Kevin Eastman's Tundra Publishing, but the completed third issue did not print, and the remaining issues, whose artwork was to be handled by Sienkiewicz's assistant Al Columbia, were never finished.

The work marks a move on Moore's part from genre fiction in the wake of the success of Watchmen. Moore weaves mathematics into a narrative of socioeconomic changes wrought by an American corporation's building of a shopping mall in a small, traditional English town, and the effects of the economic policies the Margaret Thatcher administration in the 1980s.