Born in Coventry and educated at King Henry Vlll Grammar School, he played 36 games for England, scoring ten tries, making his debut at centre, partnering John Spencer against Ireland in 1969.

He made 17 appearances for the British & Irish Lions in Australia and New Zealand, and was part of the historic 1971 side that secured a series victory against the All Blacks.  

He was the only English back in the 1973 Barbarians side that beat the All Blacks 23–11 at Cardiff Arms Park, his dynamic performance earning him the nickname Dai from the Welsh crowd.

Duckham was awarded an MBE for his services to rugby after his retirement in 1975.

Said RFU President Nigel Gillingham: "David Duckham was not only one of the greatest and most talented of English players, but also a player so greatly admired around the world. At this saddest of times we offer our condolences to his family."

Said John Spencer: "It was an honour to be David’s partner on the pitch. He was one of the greatest ever players with ball in hand and a pivotal part of the Lions success ion 1971, the only Lions tour that ever won in New Zealand. He was widely respected by players around the world and was a gentle, kind man, with a great sense of humour. David will be hugely missed by all who knew him."