Namesakes
Eurovision Song Contest Winners:
1 winner
Agnetha Fältskog (a.k.a. Agneta) 1974 Sweden 
Notable Musicians:
1 singer
Agnetha Fältskog (a.k.a. Agneta) 1950-
Olympic Medalists:
2 silver, 1 gold/silver/bronze
(silver) Agneta Mårtensson 1980 swimming - 4x100 m freestyle relay
(silver) Agneta Eriksson 1980 swimming - 4x100 m freestyle relay
(gold/silver/bronze) Agneta Andersson 1984; 1992; 1996 canoe sprint
Rock and Roll Hall-of-Famers:
1 musician
Agnetha Fältskog (a.k.a. Agneta) 2010 ABBA