There were some similarities between the two brilliant statesmen. Both Bismarck and Hitler were against popular forms of governments such as democracy. Bismarck and Hitler both had similar disdain for socialism, though Hitler was much more tyrannical. Bismarck simply framed the socialists for an assassination attempt on the German emperor while Hitler burned down the Reichstag building to further his anti-socialist propaganda. However, Hitler believed in transforming the world into a Nazi Earth while Bismarck believed that Germany should gain whatever land it deserves.
The German Chancellor Otto von Bismarck, mastermind of the German unification, and the charismatic dictator of the Third Reich, Adolf Hitler, were similar in many respects. Both were brilliant statesman, masters of manipulating the interests of others in order to achieve their goals. Both practiced realpolitik, willing to backstab, connive, and use blatantly illegal methods to gain power and prestige, both for themselves and for their nations. Both were loyal to a fault to their native lands. And both showed their policies to be dominated by a single, overarching goal for the entire time they were in power. (Source)
I am not sure if Hitler ever got to meet Bismarck because when Bismarck died in July 1898, Hitler must have been about 9 years old. But did Bismarck's persona and his role in unifying German states into a powerful German Empire have any influence on Hitler and if yes, how? I would also like to know if Hitler has mentioned anything about Bismarck in Mein Kampf and if he has said anything about Bismarck's vision and ideology?