| Reign Began | Reign Ended | Champion | Recognition |
| Title inaugurated |
| April 11, 1913 | June 2, 1913 | Sid Smith | Universal |
- The organization which eventually became the British Boxing Board of Control recognized the flyweight division in 1911 and declared Sid Smith the first champion. Smith's bout with Eugene Criqui of France on April 11, 1913, was the first international flyweight championship contest.[1]
|
| June 2, 1913 | January 26, 1914 | Bill Ladbury | Universal |
| January 26, 1914 | May 15, 1914 | Percy Jones | Universal |
- Jones stripped of title after failing to make weight for a defense against Tancy Lee.
|
| January 25, 1915 | October 18, 1915 | Tancy Lee | Universal |
| October 18, 1915 | February 14, 1916 | Joe Symonds | Universal |
| February 14, 1916 | 18 June 1923 | Jimmy Wilde | Universal |
- When Jimmy Wilde defeated American flyweight champion the Young Zulu Kid by an 11 round KO for the title in London on December 18, 1916, he was recognized in both Europe and America as the world flyweight champion.
|
| 18 June 1923 | 14 July 1925 | Pancho Villa | Universal |
- Pancho Villa's death on July 14, 1925, following a loss to Jimmy "Baby Face" McLarnin on July 4, caused the title to be vacated. A bout on August 22, 1925, between Fidel La Barba and American Flyweight Champion Frankie Genaro saw the title go to La Barba who defeated Genaro in a 10-round decision.
|
| 22 August 1925 | 25 August 1927 | Fidel LaBarba | Universal |
| 22 October 1927 | 3 December 1927 4 | Pinky Silverberg | NBA |
- The title again became vacant when Fidel La Barba retired to attend Stanford University in 1927. Soon after, several fighters claimed different versions of the title and it remained disputed until 1937. Of the champions who initially emerged following Barba's retirement Pinky Silverberg was the first when he briefly reigned as the NBA champion after his victory over Ruby Bradley via DQ on October 22, 1927, until he was stripped in January of 1928 when the NBA instead decided to hold a flyweight tournament for the title.[2] After stripping Silverberg, the NBA did not include the former champion in the tournament. Instead, on November 28, 1927, Frenchy Belanger and Frankie Genaro fought a 10 round elimination bout where Belanger won via split decision. Belanger then advanced into a vacant title fight on December 19, 1927 where he defeated Ernie Jarvis, becoming the new NBA flyweight champion. The NYSAC held their own separate tournament in which Corporal Izzy Schwartz would ultimately win the vacated NYSAC title on December 16, 1927 when he defeated Newsboy Brown, who also went on to claim the California flyweight title by defeating Johnny McCoy in his first fight after the loss.
|
| 16 December 1927 | 22 August 1929 2 | Corporal Izzy Schwartz | NSYAC |
- Schwartz was defeated by Willie LaMorte on August 22, 1929 when attempting to defend his NYSAC version of the title, however, the NYSAC refused to recognize LaMorte as champion when it was revealed that both boxers were being handled by the same manager.
|
| 22 August 1929 | 16 May 1930 | Willie LaMorte | Disputed World |
| 21 Mar 1930 | 16 September 1935 | Midget Wolgast | NYSAC |
- Wolgast had won an 18-man tournament defeating Black Bill on March 21, 1930, in the tournament finals, for the vacant NYSAC flyweight title and in his first title defense defeated LaMorte, who had been claiming the championship since his victory over then NYSAC champion Corporal Izzy Schwartz.
|
| 16 September 1935 | 19 January 1937 | Small Montana | NYSAC/NBA |
- "Montana was awarded the NBA title at the annual NBA conference in 1936 after Jackie Brown had been stripped "
|
| 19 December 1927 | 6 February 1928 | Frenchy Belanger | NBA |
| 6 February 1928 | 2 March 1929 | Frankie Genaro | NBA |
| 2 March 1929 | 18 April 1929 | Emile Pladner | NBA/IBU |
| 18 April 1929 | 26 October 1931 | Frankie Genaro | NBA/IBU |
- There was much confusion about who was the real champion and in order to create a consensus champion, NBA champion Frankie Genaro and NYSAC champion Midget Wolgast met in the ring December 20, 1930 for the undisputed championship in Madison Square Garden. The encounter ended in a 15 round split decision draw with both champions retaining their titles. Rather than having another fight to clear the air, both fighters moved on and Wolgast lost to Small Montana while Genaro lost to Victor Perez
|
| 26 October 1931 | 31 October 1932 | Victor "Young" Perez | NBA/IBU |
| 31 October 1932 | 9 September 1935 | Jackie Brown | NBA/IBU/British |
- After Brown was sent to prison for four months for assault on 6 July, (1934) he was stripped by the NBA for contravening their rules.[3] He maintained his British flyweight title, but the NBA were not the only ones to strip the champion as the IBU stripped Brown of the title when Brown did not honor a rematch with Velentin Anglemann after they fought to a draw for his world title. The organisation then matched Velentin Angelmann and Kid David for the vacant title. The IBU later stripped Angelmann for losing a bout to Peter Kane.[4]
|
| 9 September 1935 | 29 June 1938 4 | Benny Lynch | Universal |
- Lynch defeated Jackie Brown for his British title which he still held despite being stripped of the NBA title. Despite the fact that Small Montana was the undisputed NBA and NYSAC champion, the fight between Lynch and Montana was seen to be the true undisputed match as Lynch was the linear NBA champion and Montana was awarded the title. This being the first undisputed fight in the weight class in 7 years as well as being between the consensus #1 and #2 fighters of the division, the vacant Ring Magazine flyweight title was also on the line for the fighters. The title was vacated when Lynch failed the weight requirement to qualify for the flyweight division and surrendered the title. Peter Kane defeated Jackie Jurich on September 22, 1938, to win the championship.
|
| September 22, 1938 | May 1939 | Peter Kane | NBA |
- Kane was stripped of the NBA and The Ring (magazine) titles on December 11, 1939, but continued claiming the title until he was reinstated as champion by the NBA in 1942.
|
| December 14, 1939 | 1942 | Little Dado | NBA |
- The NBA proclaimed Dado as champion in 1939. After one defense Dado could no longer make weight and the NBA reinstated Kane as champion in 1942.[5]
| |
| 1942 | June 19, 1943 | Peter Kane | NBA |
| |
| June 19, 1943 | July 31, 1947 | Jackie Paterson | NBA |
- Paterson stripped of title by NBA and BBBC because he was unable to make weight for a title defense against Dado Marino.[5]
|
| March 23, 1948 | March 30, 1950 | Rinty Monaghan | Universal |
- Monaghan wins NBA and BBBC title by defeating Dado Marino on October 20, 1947. He wins universal recognition of champion after defeating Jackie Paterson on March 23, 1948. The title is vacated after Monaghan announces his retirement due to chronic bronchitis on March 30, 1950. The title is won by Terry Allen defeating Honore Pratesi in London, England by a 15-round decision on April 25.
|
| 25 April 1950 | 1 August 1950 | Terry Allen | Universal |
| 1 August 1950 | 19 May 1952 | Dado Marino | Universal |
| 19 May 1952 | 26 November 1954 | Yoshio Shirai | Universal |
| 26 November 1954 | 16 April 1960 | Pascual Pérez | Universal |
| 16 April 1960 | 10 October 1962 | Pone Kingpetch | Universal |
| 10 October 1962 | 12 January 1963 | Masahiko "Fighting" Harada | Universal |
| 12 January 1963 | 18 July 1963 | Pone Kingpetch | Universal |
| 18 July 1963 | 23 September 1964 | Hiroyuki Ebihara | Universal |
| 23 September 1964 | 23 April 1965 | Pone Kingpetch | Universal |
| 23 April 1965 | 14 June 1966 | Salvatore Burruni | Universal |
| 14 June 1966 | 30 December 1966 | Walter McGowan | Lineal |
| 30 December 1966 | 23 February 1969 | Chartchai Chionoi | Lineal |
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