It has began to a capital flow towards from developed countries to developing countries along with the transition to free market economy. This capital flow has led to an intensely competitive environment across the world especially in developing countries like Turkey. The banking sector is one of the sector that has experienced the most intense competition. The way to get rid of these intense competition environmet in banking sector is depend on the ability of understanding customer needs and the monitoring of customer-focused strategies. From this point of view in this study factors affecting customers' bank choices in Turkey have been analyzed on the example of Giresun. As a result of the study, depend on the frequency analysis it was realized that the shortening of the waiting period is the most important issue for the customers. In addition whitin the context of factor analysis it was realized that the "physical possibilities" is the most important factor that effects the costumers commercial bank preferences