Achievement
Singles:
- "Swear It Again" UK Single Chart No.1 (25/4/1999,2/5/1999)
- "If I Let You go" UK Single Chart No.1 (15/8/1999)
- "Flying Without Wings" UK Single Chart No.1 (24/10/1999)
- "I Have A Dream/Seasons In The Sun" UK Single Chart No.1 (19/12/1999,26/12/1999,2/1/2000,9/1/2000)
- "Fool Again" UK Single Chart No.1 (2/4/2000)
- "Against All Odds" UK Single Chart No.1 (24/9/2000,1/10/2000)
- "My Love" UK Single Chart No.1 (5/11/2000)
- "What Makes A Man" UK Single Chart No.2 (25/12/2000)
- "Uptown Girl" UK Single Chart No.1 (11/3/2001)
- "Queen Of My Heart" UK Single Chart No.1 (11/11/2001)
- "World Of Our Own" UK Single Chart No.1 (24/2/2002)
- "Bop Bop Baby" UK Single Chart No.5 (26/5/2002)
- "Unbreakable" UK Single Chart No.1 (10/11/2002)
- "Tonight" UK Single Chart No.3 (30/3/2003)
- "Hey Whatever" UK Single Chart No.4 (21/9/2003)
- "Mandy" UK Single Chart No.1 (23/11/2003)
- "Obvious" UK Single Chart No.3 (29/2/2004)
- "Flying Without Wings(Live)" UK Download Chart No.1 (1/9/2004)
- "Ain't That A Kick In A Head" UK Download Chart No.4 (7/11/2004)
Albums:
- "Westlife" UK Album Chart No.2 (7/11/1999)
- "Coast To Coast" UK Album Chart No.1 (12/11/2000)
- "World Of Our Own" UK Album Chart No.1 (18/11/2001)
- "Unbreakable - The Greatest Hits - Vol.1" UK Album Chart No.1 (17/11/2002)
- "Turnaround" UK Album Chart No.1 (30/11/2003)
- "Allow Us To Be Frank" UK Album Chart No.3 (15/11/2003)

Awards
1998:
Smash Hits Best New Tour Act
1999:
Best Love Song For Swear It Again
Topp Magazine Best Band Of The Year
Heineken/Hot Press Best New Act
Record Of The Year For Flying Without Wings
TV Hits Best New Act
TMF Awards Best Breakthrough Band
2000:
TMF Best International Band
Smash Hits Best Album Of 2000 For Coast To Coast
Smash Hits Best Single Of 2000 For My Love
Smash Hits Best Non-British Band
Smash Hits Best Band On Planet Pop
Smash Hits Best Haircut [Kian]
Smash Hits Best Looking Male [Shane]
Record Of The Year For My Love
MTV Best UK And Ireland Act
TV Hits Best Looking Pop Star [Shane]
TV Hits Best Band
Capital FM Awards Best International Newcomers
Best World Artists of 2000
Voice Of The 21st Century [Shane]
2001:
RAV Awards Most Column Inches
RAV Awards You Pretend To Hate Them But Know All Their Songs
Smash Hits Best Band On Planet Pop
Smash Hits Best Album Of 2001 For World Of Our Own
Smash Hits Best Haircut [Nicky]
Smash Hits Sexiest Male [Shane]
Top Of The Pops Top Pop Act
Online Music Awards People's Choice
Record Industry Association Of Singapore Best Top Selling Album
Radio Music Awards Listener's Choice Best Group
Capital FM Awards Best International Group
Brit Awards Best Pop Act
2002:
TMF Awards Best International Pop Act
Capital FM Awards Best International Group
Meteor Ireland Music Awards Best Irish Pop Single For Uptown Girl
Meteor Ireland Awards Best Irish Pop Album For World Of Our Own
Meteor Ireland Awards Best Irish Pop Act
Brit Awards Best Pop Act
MTV Asia Favourite Pop Act
2003:
Meteor Ireland Awards Best Irish Pop Act
Capital FM Awards Best International Group
TMF Awards Best Pop Group
Celebrities Dad Of The Year [Bryan]
Record Of The Year For Mandy
Smash Hits Best International Act
MTV Immies Awards Best Male International Pop Act
2004:
Meteor Ireland Awards Best Irish Pop Act
World Music Awards The World's Best Selling Irish Artist
Nordic Nusic Awards Best International Act
Smash Hits Favourite Download
2005:
Meteor Ireland Awards Best Irish Pop Act