Parish registers online
About 870,000 Suffolk baptisms and marriages are included in the IGI at FamilySearch but not all parishes are included (you can see the coverage here).
An estimated 300,000 entries from the Suffolk Baptism Index and 250,000 entries from Boyd's Marriage Index are online at findmypast. There are also nearly 1.1 million Suffolk entries in the National Burial Index.
There is a much smaller collection of Suffolk records at Ancestry.
The volunteers of FreeREG have transcribed some or all of the registers for about 40 Suffolk parishes. There is currently no OPC project for Suffolk.
Births, marriages and deaths
Registration districts in Suffolk
There are currently NO local indexes of births, marriages and deaths for Suffolk.
The Suffolk Record Office holds numerous early censuses of individual parishes ranging from 1695-1839.
Reproduced courtesy of Francis Frith.
Key Suffolk resources<! County record office, family history societies etc>
Suffolk Record Office has branches in Bury St Edmunds, Ipswich, and Lowestoft. Each branch has a complete microfiche collection of parish registers, but for other records (or to view original registers) you may need to visit a specific branch. The records of the Suffolk Regiment are held at the Bury office; the Ipswich office holds a collection of Ipswich Prison records, including an admissions register for 1897-99 which includes personal information as well as details of the offence and sentence.
Suffolk Family History Society has monthly meetings in Bury St Edmunds, Haverhill, Ipswich, Lowestoft, Stowmarket, and Sudbury (there is also a group in West London which meets in Hillingdon).
Other family history groups include Felixstowe Family History Society, Haverhill Family History Group, and Alde Valley Suffolk Family History Group.