The Gerry and the Pacemakers track was aired at 7.45am GMT on Friday on BBC Radio 1 and Radio 2 in the UK.
The song was also played on radio stations in the Netherlands, Belgium, Germany, Austria, Spain and Italy.
The anthem was also heard over the public address system at the stadiums of Celtic, Borussia Dortmund and Borussia Monchengladbach.
The idea for the initiative came from Sander Hoogendoorn, a presenter for Dutch station NPO 3FM.
"We all have to do what we can to beat this crisis," Hoogendoorn said. "Things like this just go beyond the boundaries of radio channels.
"That's why I thought, 'Why don't all radio morning shows play the same song at the same time?'
“You'll Never Walk Alone would be our choice as it could speak to those doing an incredible job working in healthcare right now, those who are ill or those who can't leave their house for a while."