1. TaeYeon (Charming Leader)
- Birthname : Kim Tae Yeon
- Name Meaning : Beauty of Highness
- Nickname in SNSD : Little child that is
like Pack-Sol-Ge snack - Other Nicknames : Taetae, Taeng, Leader Taeyeon, Leader Taeng, Kid Leader, Auntie, Afro Tangee, Little
person, A person with short body, Pack-Sol-Ge snack - Birthday : March 9, 1989
- Blood Type : O
- Height : 162 cm
- Weight : 44 kg
- Position : Leader, 1st Lead Vocalist
- Favorite Numbers : 22, 3, 6, 9
- Hobbies : Swimming
- Speciality : Chinese, Trot Singing
- Years of Training : 5 years 3 months
- Favorite Song from Girls Generation : Merry-go-round
- Discovery: 2004 8th Annual Best
Contest (Best Singer 1st Place & Grand Award) - School(s): Jeonju High School
2. Jessica (The Ice Princess)
- Birthname : Jung Soo Yeon, Jessica
Jung - Name Meaning : Beauty and Luxury
- Nick name in SNSD : Ice Princess
- Other Nicknames : Sic, Sica, Sicachu,
Liquid Sica, Sica effect, Sica of sweat, Baby Sic, Puppet Sic, Sexica, Glowing
Sic, Sleepy Sica - Birthday : April 18, 1989
- Blood Type : B
- Height : 163 cm
- Weight : 45 kg
- Position : 2nd Lead Vocalist
- Favourite Numbers : 52
- Hobbies : Boxing, Soccer
- Speciality : English, Dance
- Years of Training : 7 years 6 months
- Favourite Song from Girls Generation : Complete
- Discovery: 2000 SM Casting System
- School(s): Korea Kent Foreign
School, (former) Seoul International School
3. Sunny (The Shortest One)
- Birthname : Lee Sun Kyu
- Name Meaning : Instubborn Jade
- Nickname in SNSD : Energy Pill
- Other Nicknames : Lee Sunny, Lee Sun,
Dolphin, Dolphin Sunny, Cute Sunny,
Sun Kyu - Birthday : May 15, 1989
- Blood Type : B
- Height : 158 cm
- Weight : 43 kg
- Position : Supporting Vocalist
- Favourite Numbers : 26
- Hobbies : Swimming, Video Games,Sports
- Speciality : Athletics
- Years of Training : 9 months
- Favourite Song from Girls Generation : Ooh La-La!
- Discovery: 2007 SM Casting System
- School(s): Baehwa All-Girls High School
4. Tiffany (The Clumsy)
- Birthname : Hwang Mi Young,
Stephanie Hwang - Name Meaning : Beautiful Flower Petal
- Nickname in SNSD : Brighter than Gem
- Nicknames : Fany, Brighter than mushroom Tiffany, Fany of Belly, Bacteria Fany, Fany the Practicer, Rural Fany, Spongebob Hwang, Fany Fany
Tiffany, Human Jukebox, Mushroom - Birthday : August 1, 1989
- Blood Type : -
- Height : 162 cm
- Weight : 50 kg
- Position : 4th Lead Vocalist
- Favourite Numbers : 07
- Hobbies : Flute
- Speciality : English, Flute
- Years of Training : 3 years 7 months
- Favourite Song from Girls Generation : Baby Baby
- Discovery: 2004 Casting System (Los Angeles, California), 2004 CJ/KMTV (USA-LA) Contest 1st Place
- School(s): Korea Kent Foreign School, Diamond Bar High School (US)
5. HyoYeon (The Dancing Queen)
- Birthname : Kim Hyo Yeon
- Name Meaning : Evergrowing
Instubbornness - Nickname in SNSD : Bright Snowwhite
- Other Nicknames : Dancing Queen, Princess Fiona, Hyo fit and firm, Apple Princess, Hyon
- Birthday : September 22, 1989
- Blood Type : AB
- Height : 160 cm
- Weight : 48 kg
- Position : 1st Lead Dancer, Supporting Vocalist
- Favourite Numbers : 85
- Hobbies : Dancing
- Speciality : Chinese, Dance
- Years of Training : 6 years and 1 month
- Discovery: 2000 SM Casting System
- School(s): Studied in Beijing, China for Mandarin Chinese
6. Yuri (The Black Pearl)
- Birthname : Kwon Yuri
- Name Meaning : Kind White Jasmine
- Nickname in SNSD : Black Pearl
- Other Nicknames : Yul, Kwonyul, Ggab-
yul, Kkamchi, Yulkorita, Black Yul, Yuree - Birthday : December 5, 1989
- Blood Type : AB
- Height : 167 cm
- Weight : 45 kg
- Position : 2nd Lead Dancer, Supporting Vocalist
- Favourite Numbers : 19
- Hobbies : Dancing, Ballet, Piano, Violin, Swimming
- Speciality : Chinese, Swimming
- Years of Training : 5 years 11 months
- Favourite Song from Girls Generation : Baby Baby
- Discovery: 2001 SM 1st Annual Youth
Best Contest - School(s): NeungGok High School
- Birthname : Choi Soo Young
- Name Meaning : Luxurios Flower Petal
- Nickname in SNSD : Fun-loving Princess
- Other Nicknames : A person with long
body, Long legs, Model, Food God, Interruptor, Syoung - Birthday : Febuary 10, 1990
- Blood Type : O
- Height : 170 cm
- Weight : 48 kg
- Position : Supporting Vocalist
- Favourite Numbers : 08
- Hobbies : Eating
- Speciality : Japanese, Dance
- Years of Training : 6 years 3 months
- Favourite Song from Girl Generation : Complete
- Casted: 2002 Korea-Japan Ultra Idol Duo Audition
- School(s): Jungshin All-Girls High School
8. Yoona (The Strongest Princess)
- Birthname : Im Yoon Ah
- Name Meaning : Innocent Child
- Nickname in SNSD : Charming Girl
- Other Nicknames : Little Deer, Retard, Flower Deer, Powerful Yoona, Bravery Yoona, YoonABC
- Birthday : May 30, 1990
- Blood Type : B
- Height : 166 cm
- Weight : 47 kg
- Position : 3rd Lead Dancer, Supporting Vocalist
- Favourite Numbers : 93
- Speciality : Acting
- Years of Training : 7 years 2 months
- Discovery: 2002 SM Saturday Open
Casting Audition - School(s): Dongguk University,
Daeyoung High School - Favourite Song from Girls Generation : Complete
9. SeoHyun (The Young Maknae)
- Birthname : Seo Joo Hyun
- Name Meaning : Worthy Pearl
- Nickname in SNSD : The youngest
Princess - Nicknames : Seororo, Innocent Seohyun, KeroHyun, Youngest child, Milk Seo Joo
- Birthday : June 28, 1991
- Blood Type : A
- Height : 168 cm
- Weight : 48 kg
- Position : 3rd Lead Vocalist
- Favourite Numbers : 64
- Hobbies : Piano, Watching Keroro
- Speciality : Chinese, Piano
- Years of Training : 6 years 6 months
- Favourite Song from Girls Generation : Kissing you
- Discovery: 2003 SM Casting System
- School(s): Daeyoung High School