The 29-year-old has appeared in a total of 125 Bundesliga matches for
Monchengladbach, Arminia Bielefeld and Kaiserslautern, where he tallied one
goal in 23 appearances last term.
'We're very happy with this transfer,' said Dortmund sporting director Michael
Zorc. 'Oliver is versatile both in defense and midfield, has a lot of
experience and is a tremendously positive character.'
Kaiserslautern finished on the bottom of the Bundesliga last season, but Kirch
will be joining a team that finished eight points clear at the top of the
league in Dortmund, which has also added Monchengladbach's Marco Reus and
Leonardo Bittencourt of Energie Cottbus.