Long Lost Families was founded to look primarily for family and loved ones that have lost contact for a long time. We are aware that people go missing both in the long and short term and are happy to provide external links that may extend and help in your search, however long they have been missing from your life.
Here are a range of links, both national and International, that you can use to report a missing person. They are independent sites but can be extremely useful.
https://missingpersons.police.uk/en-gb/home
The police website to report a missing person
https://www.missingpeople.org.uk
A private charitable organisation looking for missing people
https://www.gov.uk/report-missing-person
General advice and links
https://www.fbi.gov/wanted/kidnap
http://www.doenetwork.org/mp-geo-us-males.php
https://www.justice.gov/actioncenter/report-and-identify-missing-persons
https://missingpersons.gov.au/view-all-profiles
http://www.australianmissingpersonsregister.com
https://en-gb.facebook.com/austmissingpersons/.
(Aboves Face Book page)
https://www.police.govt.nz/missing-persons/missing-persons-list
https://www.facebook.com/groups/kanzmissingandwantedpersons/
http://www.doenetwork.org/.
(Same organisation or many countries)
https://www.safetravel.govt.nz/missing-persons
http://www.doenetwork.org/mp-geo-canada-males.php
https://canadasmissing.ca/index-eng.htm
https://missingpeople.ca/home/
https://www.facebook.com/MissingPeopleCanada/
https://www.canada.ca/en/services/policing/police/crime-and-crime-prevention/cold-cases.html
https://www.interpol.int/en/How-we-work/Notices/View-Yellow-Notices