Events from the year 1921 in Croatia.

Incumbents Monarchs: Peter I (until 16 August) Alexander I (from 16 August)

Births February 18 – Branko Bauer, film director (died 2002) March 27 – Ivan Rabuzin, painter (died 2008) March 28 – Walter Neugebauer, comic book artist and animator (died 1992) May 4 – Edo Murtić, painter (died 2005) June 10 – Ivan Kožarić, sculptor (died 2020) June 22 – Radovan Ivšić, poet and dramatist (died 2009) November 27 – Vojin Jelić, writer and poet (died 2004)

Deaths January 23 – Josip Marohnić, influential emigrant in the Americas (born 1866) August 16 – Peter I of Serbia (born 1844)

References