Twenty mango (Mangifera indica L.) genotypes were evaluated at Department of Horticulture, B. A. College of Agriculture, Anand Agricultural University, Anand during 2012-13 to study genetic variability, heritability, genetic advance and correlation coefficient. Wide range of variability was observed among twenty genotypes of mango for different plant characters. The highest range of variation was exhibited by fruit yield per tree followed by number of fruits per tree, fruit volume, peel weight and stone weight. High estimates of genotypic and phenotypic coefficient of variation were recorded for all the characters except fruit width, TSS, Non- reducing sugar and total sugar, which indicated the presence of sufficient variability among selected genotypes for different characters. The narrow difference between genotypic coefficient of variation (GCV) and phenotypic coefficient of variation (PCV) along with high heritability estimates for all the characters except tree canopy, indicating that these characters were largely under genetic control and environment had least influence on the expression of these traits. High heritability estimates coupled with high genetic advance were observed for all the characters except tree canopy, indicating predominance of additive gene action in the inheritance of these traits, hence simple selection would be effective for genetic improvement of said characters in desired direction. The correlation study revealed significant and positive correlation of fruit yield per tree with number of fruits per tree at both genotypic and phenotypic level, hence could be given due weightage during selection process for yield improvement of mango.