As police, media, and friends and family share appeals far and wide, there are sadly a number of missing cases unsolved.
Across Edinburgh, Lothians, and Fife, four people are still reported missing by Police Scotland.
Families have continued to appeal to the public to help trace their loved on while some haven't been seen for a couple of years, and for others, it has been decades.
READ NEXT- Two people rushed to Edinburgh hospital following car crash during rush hour
If there's a missing persons case not featured below that you'd like to make us aware of, or issue a renewed appeal for, please email news@edinburghlive.com.
Police Scotland works in close partnership with the Missing People Charity - the only charity in the UK which specialises in and is dedicated to bringing missing children and adults back together with their families.
They can be contacted via telephone on free phone 116 000 or by visiting the Missing People website.
Call 101 for non-emergencies and general enquiries, in an emergency call 999. If you have information about a crime you can also contact the charity Crimestoppers anonymously on 0800 555 111.
John Coleman
John Coleman was last seen at the Access Point in Leith Street in Edinburgh on Friday May 1 2009.
Mr Coleman, who also goes by the names of Daniel O'Connell and Sean O'Connell, is known to live rough, and travel extensively throughout the UK and Ireland.
The 51-year-old is described as being white, around 5ft 9ins tall, of medium build, with brown eyes. He has medium-length brown hair and is unshaven.
He speaks with a Glasgow accent, and was last seen wearing a beige jacket.
He also has two distinctive tattoos on his left arm. He has 'John' tattooed on his forearm, and another with a rose, dagger and Irish harp.
Police Scotland works in close partnership with the Missing People Charity - the only charity in the UK which specialises in and is dedicated to bringing missing children and adults back together with their families.
Alexander "Sandy” Joseph Clarke
Police in Kirkcaldy are appealing for help from the public to find a local man missing since the early hours of Tuesday May 4, 2013.
Alexander "Sandy” Joseph Clarke, then 37, was last seen around 2am that morning leaving the Victoria Hospital, Kirkcaldy, and walking east along Hayfield Road.
He was carrying two 'Sports Direct' bags containing some clothing.
Officers conducting the investigation to trace Sandy said: "Our concern is the amount of time that he has been missing. We are very keen to speak to anyone who may have seen him, or had contact with him, and are appealing directly to his friends and associates.
"Extensive enquiries have already been carried out, but we are looking for that piece of the puzzle that will lead us to Sandy and make sure he is safe and well."
He is described as being 5ft 10ins tall, with a slim or average build, short slightly receding brown hair, and brown/green eyes. He has tattoos on both arms and a tattoo on his neck of a woman’s name.
If you have any information, please contact local officers in Kirkcaldy via 101.
Peter McGuire
Police in Fife are appealing for assistance from the public as part of ongoing inquiries into a long-term missing person.
Peter McGuire hasn't been seen in 30 years. The then 21-year-old was last seen on January 27, 1993.
He went missing from his home in High Valleyfield. He was seen later that day leaving Carnegie Swimming pool.
An extensive investigation was launched to trace Peter, resulting in his car being recovered near to the Forth Road Bridge, but there were no further sightings or information regarding his whereabouts.
In November 2016, information was received that a man using Peter's name and date of birth had been living rough in the Hastings area of England and this information was progressed by officers from Police Scotland's Fife Division.
As a result, it was established this man had quickly moved on, possibly to the West London area.
Peter's family have been informed of these updates and police are continuing to carry out investigative work to try and identify the man with Peter's name and date of birth.
Detective Inspector Kelly McEwan from Dunfermline CID said: "At this time, we do not know if the man down south is indeed the Peter McGuire who went missing from High Valleyfield almost 25 years ago, however he provided information which suggested knowledge of Peter’s circumstances.
"As such we are conducting a thorough investigation and liaising with our colleagues at the relevant police forces to try and identify and speak to this person.
"Members of the public who live in any of the locations currently involved in this inquiry and who believe they have useful information are asked to contact police immediately, particularly those living and working within the homeless networks.
"We would also ask that if Peter McGuire becomes aware of this appeal then he comes forward to speak with us. I would like to stress our priority is confirming if Peter is safe and well, and we will not disclose his whereabouts to any other person against his wishes."
In a statement issued through Police Scotland, Peter's family said: "Peter you are a big part of our lives that is missing and the pain of that has never gone away. We all love you so much and worry about you every day. Please Peter find it in yourself to get in touch.
"It would be a blessing to hear from you. We would love for you to be a part of our lives again in any way you choose, your terms, your pace, one step at a time. We are here for you, our doors will always be open for you. God bless you Peter and know that you are loved by us all so very much.”
Those with information can contact Dunfermline Police Station via 101.
Kenneth George Jones
Police are continuing to appeal for information about a missing man in Fife, who has not been seen since Tuesday, November, 3 1998.
Kenneth George Jones was last seen at 7am when he left his home address at in Ancrum Court, Glenrothes. He was 18-years-old at the time of his disappearance.
To date, extensive inquiries have been carried out to trace Kenneth and as yet there have been no confirmed sightings of him.
He is described as white, 6ft 2ins tall, with short, dark brown hair. He was last seen wearing a black blouson style leather jacket with zipped front, black jeans, yellow and green trainers carrying a small black/blue rucksack. He has a small scar under his right eye.
Fife Missing Person Coordinator Sergeant Peter Wordie said: “This case is subject to regular review and Kenneth’s mother and Aunt have never given up hope of finding him. The Missing People Charity have worked closely with them throughout the years to try and keep Kenneth’s disappearance in the public eye. They have reproduced an image recently which gives an artist impression on how Kenneth may look in the present day. He will be in his 40s.
READ NEXT:
Edinburgh Outlander star Sam Heughan 'unrecognisable' in throwback snap from his 20s
Edinburgh woman dies after emergency services rush to house fire on quiet street
Edinburgh fan gets bargain Harry Styles ticket at the last minute
Edinburgh proposal at city centre beauty spot captured in perfectly-timed photo
Adorable moment Edinburgh couple tie the knot in front of locals on busy beach
