Gliddon is a surname. Notable people with the surname include:
Bill Gliddon (1896–1974), Australian rules footballer Cameron Gliddon (born 1989), Australian basketball player George Gliddon (1809–1857), Anglo-American Egyptologist Katie Edith Gliddon (1883–1967), British watercolour artist and suffragette Jonathan Gliddon (born 1971), British Open Squash Masters Champion 2019