The father of Claudia Lawrence is due to receive an OBE for his work to support the relatives of missing people.
Peter Lawrence, whose daughter disappeared in 2009, will receive the honour at Buckingham Palace on Wednesday.
He campaigned for the Guardianship (Missing Persons) Bill, also known as Claudia’s Law, which was passed in April 2017.
The law, which applies to England and Wales, allows families of people missing for more than 90 days to deal with their affairs.
Claudia went missing on her way to work at the University of York in March 2009. Despite a massive police investigation, nobody has been charged in connection with her disappearance.
Mr Lawrence was named in this year’s Queen’s Birthday Honours list.
Also due to receive an OBE at Wednesday’s ceremony is director Marianne Elliot for her services to theatre.
Video gaming entrepreneur David Banner will receive an MBE for his services to the video games industry, alongside retired firefighter Alistair Boyle, who will receive the honour for his services to charity.
Flight Lieutenant Ben Wallis is due to receive the Air Force Cross at the Palace, for saving his aircraft and crew following engine failure on his helicopter.
He was named in this year’s Operational Honours and Awards List.