Namesakes
Fictional Characters from Television:
2 characters, 1 hero
Joyce Summers 1997 Buffy the Vampire Slayer 
Andrea Marino (a.k.a. Joyce) 2005 Ghost Whisperer
Joyce Byers 2016 Stranger Things
Hurricanes and Tropical Storms:
2 storms, 1 hurricane
Hurricane Joyce 2000
Storm Joyce 2012
Storm Joyce 2018
Notable Actors and Entertainers:
3 actors
Joyce Jameson 1932-1987
Joyce Bulifant 1937-
Jane Seymour (a.k.a. Joyce) 1951-
Notable Writers:
1 author
Joyce Carol Oates 1938-
Olympic Medalists:
2 gold, 2 gold/silver, 1 bronze, 1 silver, 1 silver/bronze
(silver/bronze) Joyce Cooper 1928; 1932 swimming - 100 m backstroke; swimming - 100 m freestyle; swimming - 4x100 m freestyle relay
(silver) Joyce King 1948 4x100 m relay
(gold/silver) Lorraine Crapp (a.k.a. Joyce) 1956; 1960 swimming - 100 m freestyle; swimming - 400 m freestyle; swimming - 4x100 m freestyle relay
(gold) Micki King (a.k.a. Joyce) 1972 diving - springboard
(bronze) Joyce Chepchumba 2000 marathon
(gold) Joyce Sombroek 2012 field hockey
(gold/silver) Brittany Elmslie (a.k.a. Joyce) 2012 swimming