He inspired a generation of radio presenters, and shock news of his death prompted social media to be flooded with tributes.
Tributes were made on-air, with BBC radio stations including Radio 4 and 5 live running articles and interviews on Stewpot into the evening.
Ed spent five decades on the radio, but was also well known to millions as the presenter of Crackerjack and Top of the Pops.
Tributes have been made by friends, colleagues and fans, including current BBC Radio 2 Controller and Director of BBC Music, Bob Shennan.
David Hamilton, talking on 5 live to Nihal, said “It’s a very sad day.”
Former colleague Noel Edmonds tweeted: “In ’67 Ed Stewart heard a DJ audition tape, liked it, passed it to Kenny Everett and my career was born. Stewpot I owe you everything xN”
Bob Harris: “So sad to hear that Ed Stewart has died. I first heard his voice in 1966 on Radio London. The pirates changed UK music broadcasting forever.”
Bob Bevan MBE posted: “shattered by death of Ed Stewart one of my best friends in showbiz for 35 years He was at my house for dinner just a few weeks back.”
Tony Blackburn: “So sorry to hear that Ed Stewart has passed away.We met in 1965 aboard the Pirate Ship Big L Radio London.He was a fine broadcaster.”
Ken Bruce: “Very sad news about Ed Stewart. One of the fun people in radio.”
Simon Mayo: “How sad to hear to hear of the passing of Ed Stewart. Junior Choice was was always a radio classic.”
And Everton Football Club paid their respects by tweeting: “We are deeply saddened by the news brilliant broadcaster and lifelong Evertonian Ed Stewart has passed away. RIP Ed.”
David Lloyd has uploaded his final show on BBC Radio 2 from just before Christmas. He wrote: “His last programme was broadcast live – just days before – on Christmas Day 2015. In a piece of inspired scheduling, Ed revived ‘Junior Choice’ to remind us grown-ups of Christmases past, playing all the favourites from Nellie the Elephant to Sparky’s Magic Piano. His closing song was, fittingly, the vocal version of his theme, which he felt able to join in with.
I think every disc jockey would like to carefully craft their final show, their last song and their last words. Ed almost seemed to.
“I’ll be with you – whenever”.”