One of the youngsters was just six when she went missing.
There is nothing quite as heartbreaking as a missing child.
Charity Missing People helps support families and has a huge database of all the missing people in the UK.
It has a 24-hour confidential helpline and works to reconnect families.
As devastating as it might be to think of missing children, it is vital that we do so – that is the child’s best chance of getting home safely.
Sadly, there are currently 61 children missing from across London or close to the capital – one of them has been missing for more than 60 years.
While some of those listed are no longer children, they’re included as they disappeared when they were youngsters.
So here is a list of all of Missing People’s active appeals for children missing from London.
If you have any information that can help locate them you can call Missing People on 116 000 and quote the reference numbers listed.