The baby bear was born Sunday to mother Yang Yang and father Long Hui. It's their fourth cub, after Fu Long, Fu Hu and Fu Bao.
In a statement today, the zoo said its newest addition was just 10 centimeters (4 inches) long and weighed 100 grams (3.5 ounces) at birth.
A spokeswoman for Tiergarten Schoenbrunn, the zoo's official name, said the panda will be named after 100 days.
Johanna Bukovsky said no other European zoo had managed to successfully breed giant pandas by natural means.
The zoo noted that about 40 per cent of giant pandas don't survive the first year.