Different banks (German and International) are operating in Germany. It his highly recommended that you open a bank account depending upon your need.

• Local Banks, eg. Sparkasse, Post Bank or Volksbank are really nice options to open a bank account if you have interest in using you bank account in german cities (lots of branches, ATMS and local franchises) . You find the branches of these banks in villages as well.
• International Banks e.g. Deutsche Bank, Commerz bank have less branches or ATM in the cities. Their scope is country/world wide.
• For US or UK citizens, it may be advantageous to use Deutsche Bank, as they cooperate with Bank of America and Barclays. These agreements include perks such as free ATM transactions. Furthermore, Deutsche Bank has a very good online banking system in English.

e.g. in Tübingen we have 5-6 branches of Sparkasse bank, 2-3 Commerz bank while there is only one branch of Deutsche Bank at Lustnauer Tür.