Zelen may refer to:
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Ljiljana Zelen Karadžić Ljiljana (Cyrillic script: Љиљана) is a feminine given name. It may refer to:
*Ljiljana Aranđelović (born 1963), Serbian politician and former presidential candidate in the Serbian presidential election, 2004
*Ljiljana Blagojević (born 195 ...
(born 1945), the wife of the former Bosnian Serb leader Radovan Karadžić
*
Marvin Zelen
Marvin Zelen (June 21, 1927 – November 15, 2014) was Professor Emeritus of Biostatistics in the Department of Biostatistics at the Harvard T.H. Chan School of Public Health (HSPH), and Lemuel Shattuck Research Professor of Statistical Science ...
, statistician
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Zelen's design, experimental design for randomized clinical trials proposed by statistician Marvin Zelen
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