Group E - to be played in Nice (FRA)
RN Savona (ITA)
Szolnoki VSC Dosza Kozgep (HUN)  
Olympic Nice Natation (FRA)
 
Group F - to be played in Athens (GRE)
VK Primorac Kotor (MNE)
Panionios GSS (GRE)
Dinamo SHSVM Moscow (RUS)
Heybeliada Istanbul (TUR)
 
Group G - to be played in Istanbul (TUR)
Panathinaikos Athens (GRE)  
VK Medvescak (CRO)
Galatasaray Istanbul (TUR)
CN Aix-le-Bains (FRA)
 
Group H - to be played in Nijverdal (NED)
Amateur SC Duisburg (GER)
VK Mornar Spilt (CRO)
BZC Schuurman (NED)
Ligamus Tblisi (GEO)
 
Group I - to be played in Chios (GRE)
Red Star Belgrade (SRB) 
NC Chios (GRE)
Montpellier WP (FRA)
Enka Istanbul (TUR)  
 
Group L - to be played in Naples (ITA)
CN Posillipo  (ITA)
CN Sabadell (ESP)
SG W98/Waspo Hanover (GER)
 
Group M - to be played in Oradea (ROU)
CSM DiGi Oradea (ROU)
RN Bogliasco (ITA)
BMK Kharkiv (UKR)
Sintez Kazan (RUS)  
 
Group N - to be played in Budapest (HUN)
Shturm 2002 Ruza (RUS)
Hoved Groupama Budapest (HUN)
SV Würzburg 05 (GER)
  
The tournaments will be held 7-9 October 2011.  The top two of each group advance to the round of last 16. 
The draws for the Preliminary Rounds of the Champions League and the round of last 16 of the Euro Cup will be held in Zagreb, Croatia on 16 October 2011.