A Victorian Birth, Death and Marriage Index is available here at archive.org.
The description states "Complete Victorian Birth Death & Marriages index compiled in a Microsoft Access Database. Births 1836 to 1920. Deaths 1836 to 1985. Marriages1836 to 1942. Requires Microsoft Access to use."
A ZIP file can be downloaded containing the database file.
Similar information can be downloaded here as three files in CSV format.