The female cub named Daseep was born weighing just over 2 pounds on September 10.
Zookeepers have been raising her by hand after her mother rejected her at birth - common for first-time tiger moms.
Zoo Director Manfred Niekisch said the cub is doing very well and has already gained nine pounds from her steady milk diet.
Daseep is the first tiger cub born at the Frankfurt Zoo in 26 years.
