The 2013 PBZ Zagreb Indoors was an ATP tennis tournament played on hard courts indoors. It was the 11th overall edition of the PBZ Zagreb Indoors, and part of the ATP World Tour 250 series of the 2013 ATP World Tour. It took place in Zagreb, Croatia from February 2 through February 10, 2013.
The following players received wildcards into the singles main draw:
The following players received entry from the qualifying draw:
The following players received entry as lucky losers:
The following pairs received wildcards into the doubles main draw: