Estian Calitz Yo tswotsweng ka Motsheganong ale masome a mabedi le boraro ka ngwaga was 1949 (born 23 May 1949) ke mookamedi yo o mogolwane wa tsa madi ebile gape ele mo maemong a boperofesara jwa tsa itshollelo kwa Stellenbosch University kwa Afrika Borwa gotsweng ka 2003. i

Calitz o tsholetswe ebile a golela ko Western Cape Province ko toropong ya George mo Afrika Borwa. Go fetseng ga gagwe dithuto tsadi master's degree mo go tsa itsholelo ko Stellenbosch University one a berekela South African Reserve Bank, University of Pretoria le Rand Afrikaans University.

One a tsaya dithuto tsagagwe tsa PhD mogo tsa papadi (PhD in Commerce) ko iStellenbosch University mo Afrika Borwa ka 1986.

Ka ngwaga wa 1989, Calitz one a nna mothusa mookamedi (deputy director-genera) kwa South African Department of Finance mme yare ka 1993 one nna mookamedi mogolo.

One a tlogela tiro mogo goromente ka 1996 go ya gonna porofesara wa tsa itsholelo ko University of South Africa. Calitz one a boela ko rStellenbosch University ka 2001 ele ene a eteletseng lephatla la tsa itsholelo (dean of the faculty at the economics and management sciences).