It depends on where you are.
German is like English in some ways--things have different names in different places. Like a big sandwich is called a sub in some places, a hoagie in others and a hero in still other places.
The complete name of a jelly donut is a Berliner Pfannkuchen--a Berliner pancake. Tradition holds it was invented by a Berlin-born cook in a Potsdam-based artillery unit who invented a breakfast food you could eat while firing missions. Everyone liked these so when the war ended everyone went home and told the local baker about them. In Berlin this thing was called a Pfannkuchen because the people who live in Berlin call themselves Berliners. Outside Berlin people call the same thing a Berliner.
Alles klar?
it means "I am a Berliner" -> Berlin is the capital city of Germany and "Berliner" is a person who is from Berlin
Berliner is either a citizen of Berlin or in some area of Germany the name of a pastry.
Hanover, Germany
Martin Berliner died on January 26, 1966, in Berlin, West Germany of heart attack.
Ein Berliner in Hamburg - 1961 TV is rated/received certificates of: West Germany:16
Berliner Luft hat Duft - 1959 is rated/received certificates of: West Germany:6 (f)
Witt - Live in der Berliner Philharmonie - 2002 V is rated/received certificates of: Germany:12
The Berlin airlift (Berliner Luftbrücke) was in 1948-1949
Trude Berliner was born on February 28, 1903, in Berlin, Germany.
Berliner Ballade - 1948 is rated/received certificates of: Finland:K-16 Sweden:15 USA:Passed (National Board of Review) West Germany:16 (nf)
Alan Berliner's birth name is Alan Jay Berliner.
Emile Berliner had 3 daughters, the 2nd, 5th and 7th of his children. Hanna Edith Berliner, 1884-1934 Louise Berliner, 1894-1967 Alice Elizabeth Berliner, 1900-1963