The only marriage registers we hold are for North Manchester (formerly Brodyer) Synagogue, Prestwich. These cover 1895 to 1915 (ref GB127.M442/2/2/1-4). Records on our archives catalogue are indexed by name. If you want to look at the registers, note the reference number and visit the Central Library search room, no appointment needed. Ask a member of staff if you need help finding it.
Marriage registers for other synagogues will be held by them.
A lot of synagogue marriages are indexed on Lancashire BMD.