The main objective of this study was to investigate the effects of marketing mix elements on consumers buying decision in the case of MOHA soft drink consumers in Addis Ababa city. To achieve the objective of the study the researcher developed conceptual frame work by reviewing previous literature as well as collected data from target respondents in order to test the formulated hypotheses. The researcher used descriptive and explanatory research design and the quantitative research approach. The target populations of the study were the consumers of MOHA soft drink in Addis Ababa City. Non-probability sampling technique, such as convenience sampling was used to collect the data from the respondents. Primary source of data was collected from MOHA soft drink consumers by using the five point likert scale whereas secondary source of data was collected from books, journal article, published and unpublished research, websites and others. The study has 91.49% response rate.rnThe analysis was performed through descriptive and inferential statistics using multiple regressions with the aid of statistical package for social sciences (SPSS). Four assumption tests were checked before regression analysis was undertaken. These are Normality, Linearity, Multi-collinearity and homoscadicity. It was found that there is a reasonable normal distribution and linearity on the collected data and less multi-collinearity between the variables. The variation explained by the regression of all the predictor variables on consumer buying decision is 72.4%. The remaining is explained by other variables not included in the models.rnMultiple regression and correlation analysis were used to determine the relationship between the independent variables (i.e product, price, promotion and place) and the dependent variables (consumer buying decision).The result indicates that all the marketing mix elements have a positive and significant effect on consumer purchase decision. MOHA Soft Drink Company should give more emphasis on marketing mix elements to attract and increase the number of their customers.