John Knight Mudie (10 April 1930 – 2 March 1992) was a Scottish international footballer who played as a forward. He won 17 caps for his country, helping the Scotland national team to qualify for the 1958 FIFA World Cup.

Starting his career with Blackpool in 1947, he went on to spend the next 14 years with the club, helping them to the FA Cup final in 1951 and 1953, the latter of which ended in victory for the Tangerines. In all, he scored 144 league goals for the club. He then spent 1961 to 1963 at Stoke City, helping them to the Second Division title in 1962–63, also spending a brief time on loan with Canadian club Toronto City. After signing with Port Vale in 1963, he spent 1965 to 1967 as the club's joint-manager, along with his long-time friend and teammate Stanley Matthews. He became a coach after he finished his career with Oswestry Town in 1967. However, he later managed Northwich Victoria in 1973 and then American side Cleveland Cobras for a spell in 1978.

Born in Dundee, Jackie Mudie started his footballing career with local junior sides Lochee Harp and Stobswell Juniors.

Mudie joined Blackpool in September 1946, signing professional terms in May 1947. He was at the club throughout the 1950s, which are the most successful decade in the club's history.

After three years developing in the reserves, he made his debut on 8 March 1950, against Liverpool, scoring the only goal in a 1–0 win at Anfield. The following season he featured regularly as Blackpool challenged in the league and reached the 1951 FA Cup final. Newcastle United proved too strong at Wembley, however, and two goals from Jackie Milburn took the trophy to the North-East. After the loss, Blackpool signed Ernie Taylor, and Mudie lost his place. Eventually, though, he worked his way back into the team.

In 1952–53, Blackpool bounced back from their disappointment in 1951's FA Cup final when Mudie's last-minute goal against Tottenham Hotspur in that season's semi-final sealed a return to Wembley, this time to face Bolton Wanderers. This match is widely remembered as the "Matthews final", due to the winger helping to turn a 3–1 deficit into a 4–3 win for Blackpool. Although Matthews and hat-trick scorer Stan Mortensen understandably took the limelight, Matthews himself would later acknowledge the importance of the selfless Mudie, noting that his "skill and work for others often made some of us look better than we really were".

In his early career, Mudie was considered an inside forward; however, when Mortensen was transferred to Hull City in August 1955, Mudie became Blackpool's regular centre-forward, despite his diminutive stature. This change of position, combined with his scoring 22 and 38 goals in consecutive seasons, enabled him to achieve international recognition. He made his international debut against Wales in 1956. His hat-trick in a 4–2 win against Spain in 1957 helped Scotland qualify for the following year's World Cup. He was subsequently selected in the squad that travelled to Sweden. Scotland exited after the group stage, effectively ending Mudie's international career with 17 caps and nine goals to his name.

Stoke City signed Mudie in March 1961 for £8,500, and he scored just five minutes into his debut against Scunthorpe United. He ended the 1960–61 season with three goals from 13 matches as Stoke flirted precariously with relegation. In the summer of 1961 Mudie spent the summer months playing for Canadian side Toronto City along with Stanley Matthews, Danny Blanchflower and Johnny Haynes. After a poor start to the 1961–62 campaign, Stoke's attendances at the Victoria Ground dropped alarmingly below the 10,000 mark. To address the situation manager Tony Waddington brought back Stanley Matthews to the club and it had the desired effect with 35,974 attending the next match against Huddersfield Town. Matthews's return also rekindled his partnership with Mudie which proved vital to winning the Second Division title in 1962–63 as Mudie scored 20 goals, including the opening goal in title decider against Luton Town.