Jaroslav Bohdan Rudnyckyj 
Origin/Culture/Country: PolishJaroslav Bohdan Rudnyckyj: (1910 – October 19, 1995) was a Ukrainian Canadian linguist, lexicographer with a specialty in etymology and onomastics, folklorist, bibliographer, travel writer, and publicist. He was one of the pioneers of Slavic Studies (see Slavistics) in Canada and one of the founding fathers of Canadian "Multiculturalism".
Jaroslav Heyrovskı Origin/Culture/Country: CzechJaroslav Heyrovskı: Heyrovskı was the inventor of the polarographic method, father of electroanalytical chemistry, and recipient of the Nobel Prize in 1959.
Jaroslav Seifert Origin/Culture/Country: CzechJaroslav Seifert: a Nobel prize winning Czech writer, poet and journalist.
Jaroslav Jan Pelikan Origin/Culture/Country: AmericanJaroslav Jan Pelikan: was one of the world's leading scholars in the history of Christianity and medieval intellectual history.Before he turned three, his mother had taught him to use the typewriter, as he could not yet hold a pen. His facility with languages (he is thought to have had a command of at least a dozen different tongues) may be traced to his multilingual childhood and early training. That linguistic facility was to serve him well in the career he ultimately chose (after first contemplating becoming a concert pianist)--that of the 20th century's preeminent historian of Christian doctrine, not confining his studies to Roman and Protestant theological history, but embracing also that of the Orthodox East.
Jaroslav Drobnı Origin/Culture/Country: United KingdomJaroslav Drobnı: was an amateur tennis champion as well as being an ice hockey player for the Czechoslovakian national team. He became an Egyptian citizen from 1949 to 1954, and then moved to Great Britain, where he died in 2001.He was a silver medallist with the Czechoslovakian ice hockey team in the 1948 Olympics. As a tennis player he was good enough as early as 1946 to be able to beat Jack Kramer in the round of 16 at Wimbledon before losing in the semi-finals.
