With Barcelona, Navarro played on Liga ACB (Spanish League) championship teams eight times: 1999, 2001, 2003, 2004, 2009, 2011, 2012 and 2014; the Spanish King's Cup winners seven times: 2001, 2003, 2007, 2010, 2011, 2013 and 2018; the Spanish Supercup winners five times: 2004, 2009, 2010, 2011 and 2015; the FIBA Korać Cup champions once: 1999; and the EuroLeague champions twice: 2003 and 2010. Navarro helped Barcelona reach the EuroLeague Final Four seven times: 2000, 2003, 2006, 2009, 2010, 2012, and 2014. Navarro was selected to the All-EuroLeague Team seven times: 2006, 2007, 2009, 2010, 2011, 2012 and 2013. In 2006, Juan Carlos Navarro earned the regular season Most Valuable Player award of the Spanish Liga ACB. He was named the Spanish Liga ACB Finals Most Valuable Player in 2009 and 2011. He was named the EuroLeague MVP in 2009, and the EuroLeague Final Four MVP in 2010.