This study explores the impact of advertisement (print, broadcast and outdoorrnadvertisements) towards customer brand preference in the bottled water industry. Data wasrncollected from customers who regularly or occasionally use bottled water products. A samplernof 384 respondents was selected using multi-stage sampling method. The researcher selectedrnparticipants of the study from four sub-cities of Addis Ababa as a cluster unit withrnheterogeneous population. The data were collected through self administered questionnairernwhich resulted in 318 valid responses. Data analysis was done using descriptive analysis,rncorrelation, regression and one-way ANOVA using SPSS 22.0. The Pearson correlationrncoefficient used in the study signifies that all independent variables (component ofrnadvertisements) and the dependent variable have positive relationships with one another. Thernresult from regression analysis concludes that out of the three advertisement media, outdoorrnand broadcast have a significant impact on brand preference, while, print advertisement onrnnewspaper and magazines has no significant effect on brand preference of consumers. It wasrnalso concluded that overall advertisement had a significant impact on brand preference. ThernFinding of the study also shows that consumers of bottled water products who belong torndifferent income groups and different age groups perceive advertisement activities in thernsame manner. None the less, advertisement is perceived differently among differentrnrespondents who have attained different educational levels