The 22-year-old had fallen out of favour at Lyon after joining them a year ago from Belgian club Gent.

Orban scored five times in 21 appearances for Lyon but had not featured in the league since September.

"We wish Gift well in his new adventure," Lyon said.

Hoffenheim said Orban would offer their forward line greater width and speed.

"In Gift Orban we have found exactly the fast striker... that we were looking for," Hoffenheim director Andreas Schicker said.

"We are convinced that his skills will give our team greater variety in attack."