Namesakes
Niels Kaj Jerne
(m) 1911-1994 
Nobel Prize Winners 1984 (medicine)
Tapio Rautavaara
(a.k.a. Kaj) (m) 1915-1979
Olympic Medalists 1948 javelin throw (gold)
Kaj Leo Johannesen
(m) 1964-
Other Leaders 2008-2015 Faroe Islands (prime minister)