Jackie Blanchflower, (March 7, 1933–September 2 1998), was a Northern Irish football player. He graduated from Manchester United F.C.'s youth system and played for the club on 117 occasions, before his career was cut short due to injuries sustained in the Munich air disaster. He was the younger brother of Dennis 'Danny' Blanchflower, the captain of the Tottenham Hotspur side which dominated English football in the early 1960s.

Jackie Blanchflower's first appearance in a professional game was for Manchester United on 24 November, 1951 against Liverpool, away at Anfield. He helped the club to two league titles during the 1950s. Nicknamed "Twiggy" by his teammates, he was renowned for his versatility. Initially, he played many games as a forward, but the Manchester United manager at the time, Matt Busby recognised his intelligent positioning sense and aerial power and chose to play him at centre-half. He scored 27 goals during his time at the club.

On 6 February, 1958, the Manchester United team that had travelled to Belgrade for the second leg of a European cup tie had their chartered plane stop in Munich to refuel. Weather conditions caused the plane to crash when the pilot attempted to take-off from Munich airport and 23 of the 43 passengers on board were killed. Jackie Blanchflower was severely injured, suffering from a fractured pelvis and crushed kidneys, and despite an attempt to return to football, never made a full recovery. Doctors advised him not to pursue a return to the game due to fears he would damage his kidney and a year later, Blanchflower retired from football. The Munich air disaster had ended his short career at the age of just 24, having earned 12 caps for Northern Ireland.

Upon retiring from football, Jackie Blanchflower tried a variety of professions, including running a newspaper shop and working for a bookmaker, but eventually pursued studies in finance and began a career as an accountant. He later became an after-dinner speaker and was a regular on the after-dinner circuits until just before his death in 1998.

On 2 September, 1998, Jackie Blanchflower lost his fight against cancer and died at the age of 65.

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