Great Britain and Ireland
The British and Irish League was formed in 1674 when it became difficult to keep the many teams and their matches hidden from the Muggles. The thirteen best teams formed the League and the others were asked to disband. The League teams compete annually for the League Cup. 

Appleby Arrows
Ballycastle Bats
Caerphilly Catapults
Chudley Cannons
Falmouth Falcons
Holyhead Harpies
Kenmare Kestrels
Montrose Magpies
Pride of Portree
Puddlemere United
Tutshill Tornados
Wigtown Wanderers
Wimbourne Wasps

Historical teams
National teams

Quidditch Teams of Britain and Ireland 

• founded in 1612
• defeated the then-champion Vrasta Vultures in a 16-day upset match in 1932
• supporters fire arrows into the air from their wands, but this was banned in 1894
• fierce rivals of the Wimbourne Wasps

• picture of them playing the Cannons in the book Flying With the Cannons (GF22)
• mascot: Barny the Fruitbat

• team formed in 1402
• famous victory over the Norwegian Karasjok Kites in 1956
• most famous player: "Dangerous" Dai Llewellyn

• Ron's favorite team (logo: two black Cs and speeding cannonball) (SS, CS3
• tend to lose quite a bit
• Joey Jenkins - Beater, hits a Bludger toward a Ballycastle Bats Chaser in the book Flying With The Cannons (GF22)
• won the league 21 times, the last time being in 1892 (QA)
• club motto: "We shall conquer" (pre-1972), "Let's all just keep our fingers crossed and hope for the best" (after 1972)

• known for hard play
• famous (and violent) Beaters Kevin and Karl Broadmoor (1958-1969)
• motto: "Let us win, but if we cannot win, let us break a few heads."

• founded 1203
• only hires witches
• famous match: defeat of the Heidelberg Harriers in a seven-day match in 1953, widely considered to be the finest games ever seen
• Seeker: Glynnis Griffiths (1953)
• Captain: Gwendolyn Morgan using a Cleansweep 5 (1953)

• Irish team, founded in 1291
• leprechaun mascots
• supporters play harps
• Darren O'Hare, Keeper 1947-60, invented the Hawkshead Attacking Formation

• most successful team in history, won the British and Irish League thirty-two times
• European Champions twice
• famous players:
• Eunice Murray (Seeker, d. 1942)
• Hamish McFarlan (Captain, 1957-68)

• founded in 1292
• known as "The Prides"
• two league wins in the 1960s
• famous player: Chaser/Captain Catriona McCormack, played for Scotland thirty-six times
• daughter Meghan currently plays Keeper
• son Kirley is lead guitarist for the Weird Sisters

• Dumbledore is a fan of this team (QA)

• Kennilworthy Whisp is a fan of this team. (QA)

• Ludo Bagman a Beater c.1980 (GF7)

Historical teams

Banchory Bangers

robes:
unknown
home: Banchory

• known for their appallingly awful Quidditch skills
• also known for their extremely reckless shenanigans which led to the disbanding of their team in 1814

Barnton

robes:
unknown
home: Barnton
Barnton is located southeast of Liverpool in Cheshire.

• In 1883, an amateur Barnton team had goals made of different sized baskets. Those for their opponents were tiny while their own were "great wicker caves" which were easy to score into. 

Ilkley

robes:
unknown
home: Ilkley
Ilkley is located to the northwest of Leeds, west of York

• the Ilkley team, in the 1100s, played a game againt a Yorkshire team which was described in a now-famous letter from Goodwin Kneen to his cousin Olaf in Norway.

National Quidditch Teams

England fields a team which lost to Luxemburg in 1994 in the lead up to the World Cup. The Irish team, however, went on to win the cup in a very exciting match against Bulgaria.

Ireland National Team (1994):
robes:
mascot: Leprechauns

• Connolly - Beater
• Aiden Lynch - Seeker
• Moran - Chaser
• Mullet - Chaser
• Quigley - Beater
• Ryan - Keeper
• Troy - Chaser