Douglas Norman Sewell (19 November 1929 – 9 September 2017) was an English professional golfer. Before turning professional he had a successful amateur career, playing in the Walker Cup in 1957 and 1959.
Sewell was a useful amateur golfer and played in the Walker Cup in 1957 and 1959 and the Eisenhower Trophy in 1960.
Sewell won the Brabazon Trophy at Moortown Golf Club in 1957, finishing 8 strokes ahead of Tony Slark. The following year he won the English Amateur at Walton Heath Golf Club beating the Rhodesian David Proctor 8 & 7 in the final. Proctor qualified because his father was born in England. He came close to winning the Berkshire Trophy in April 1959, finishing a stroke behind Joe Carr after making a bogey at the final hole. In June he won his second Brabazon Trophy after a playoff with Michael Bonallack. They had each scored 300, seven ahead of the rest. In the 18-hole playoff Sewell scored 78 to Bonallack’s 79. His aggregate score of 580 in the Berkshire and Brabazon trophies made him the first winner of the Philip Scrutton Jug. He won the English Amateur for the second time in 1959 beating Martin Christmas in the final at the 41st hole.
Sewell only played once in the Amateur Championship, losing in the 1959 quarter final to the American Bob Magee.
He turned professional in March 1961, becoming an assistant professional at Wentworth. In 1967 he became professional at Ferndown in succession to Percy Alliss. He remained at Ferndown until his retirement in 1994.
Sewell’s only important professional win was in the 1970 Martini International at Conwy Golf Club where he tied with Peter Thomson. There was no playoff and the two shared the first and second prize money. He was twice runner-up in the Penfold-Bournemouth Tournament at Queens Park Golf Club. In 1971 he was in a four-way tie for second place, four strokes behind Neil Coles. In 1973 he was second again, two behind Eddie Polland.
Sewell won the inaugural PGA Club Professional Championship in 1973 at Calcot Park Golf Club, a stroke ahead of David Melville. The leading nine formed the team for the first Diamondhead Cup, the forerunner of the PGA Cup, played later in that year. He was 9th in the second PGA Club Professional Championship, again gaining a place in the British team for the Diamondhead Cup. In 1975 Sewell won the event for the second time, two strokes ahead of David Huish. He played in the first PGA Cup in October.