Johanna Mariel Lasic is a beauty pageant titleholder from Argentina. She was crowned Miss Argentina Universe on May 23, 2009 by Dayana Mendoza, who was Miss Universe 2008. Johanna represented Argentina at the Miss Universe 2009 pageant held on August 23, 2009 in Nassau, Bahamas. Johanna is of Spanish, Italian, French, German and Syrian descent.