Abstract: This study examined performance aptitude of successful marketing executives’ in Deposit Money Banks in Nigeria. The specific objectives include: (i) to determine the influence of aptitude on both objective and subjective performance of marketing executives in Nigerian Deposit Money Banks and (ii) to determine how these 17 aptitude variables: quantitative/math ability, cognitive ability, intelligent quotient, conscientiousness, neuroticism, openness, agreeableness, sociability, persuasiveness, aggressiveness, persistence, empathy, age, gender, marital status, height and body size/weight influence performance of marketing executives in Nigerian Deposit Money Banks. Quantitative survey research design methodology was adopted for the study. By gathering primary data from 334 bank marketing executives and 219 business managers using structured questionnaire and MANCOVA statistical tool for testing the hypotheses and analyzing the data, findings revealed that: aptitude has strong and positive influence on both objective and subjective performance of marketing executives in Nigerian Deposit Money Banks and (ii) all the aptitude variables mentioned above have strong and positive influence on both objective and subjective performance of marketing executives in Nigerian Deposit Money Banks except gender, marital status and height. It was recommended that bank managers should pay adequate attention to those aptitude variables that have strong positive influence on performance of marketing executives and de-emphasize expenditures on those that do not