Reginald Sidney Ellis (26 November 1917 – 21 June 2015) was an Australian pilot, flying instructor and cricketer.

[2] Ellis was a pilot in the Royal Australian Air Force during World War II, flying Lancaster bombers.

[4] Ellis played in the Victory Tests in England between ex-servicemen of Australia and England immediately after World War II, and then toured India and Australia with the Australian Services XI.

[5] A left-arm orthodox spin bowler, Ellis was the most successful of the Services' bowlers in the matches in England, taking 23 wickets at an average of 19.13,[6] with a best performance of 5 for 43 and 5 for 24 in the final match in Scarborough.

[9] The last surviving member of the Services XI, Ellis was guest of honour at Sachin Tendulkar's Bradman Oration in Canberra in 2011.