In Egypt, where most women wear the Islamic headscarf, Marwa Sherbini has become known as "the veil martyr".
There were alerts on state television as news broke that her murderer had been sentenced to life in prison with no possibility of an early release.
The Egyptian ambassador in Berlin, Ramzi Izz Al-Din, told Channel One that Alexander Wiens had received "the harshest ruling possible".
He said he did not expect the ruling to be reduced if an appeal was filed.
Foreign ministry spokesman Hossam Zaki welcomed the verdict, saying it "served justice" and was "a warning to those motivated by hate".
Wiens, 28, stabbed Ms Sherbini at least 16 times in a courtroom in Dresden in July, when she was giving evidence against him in a defamation case.
He had called her a "terrorist" and "Islamist" in a children's playground because she covered her hair.
http://news.bbc.co.uk/2/hi/middle_east/8355921.stm