England & Wales, FreeBMD Marriage Index: 1837-1915 free access to the Civil Registration index of Marriages for England and Wales , search by name or by year of marriage

England & Wales, Marriage Index: 1916-2005 Civil Registration index of Marriages for England and Wales

England and Wales Visitations 18th & 19thC over 600 pedigree charts of English and Welsh families
National Library of Wales an online searchable index of Marriage Bonds and Allegations.It contains details of some 90,000 marriages by licence which took place in Wales between 1616 and 1837
North Wales BMD free databases of N Wales births, deaths and marriages
St Catherine's Marriage Index for Wales March 1849
United Kingdom Genealogy has a database of over 3,000 marriages
United Kingdom Marriages, 1838-1972 over 900 Jewish Records; includes records from the General Records Office (GRO) and Synagogue Registers
Vicar-General Marriage Licence Index is a genealogical finding aid comprising a surname index which lists over 356,000 people who were issued with marriage licences by the Vicar-General of the Archbishop of Canterbury between 1694 and 1850. There are 52,800 different surnames occuring in the index and part of this web site is devoted to listing them and showing their frequency.
Wrexham  Marriage Index 1837-1997
1837 Online (small fee) indexes of Birth, Marriages and Deaths for England and Wales from 1837 to the present day