| A/S/L/P | Age/Sex/Location/Picture |
| A3 | Anyplace, Anywhere, Anytime |
| AAAAA | American Association Against Acronym Abuse |
| AAF | As A Friend |
| AAK | Asleep At Keyboard |
| AAMOF | As A Matter Of Fact |
| AAMOI | As A Matter Of Interest |
| AAR | At Any Rate |
| AAR8 | At Any Rate |
| AAS | Alive And Smiling |
| AATK | Always At The Keyboard |
| AAYF | As Always, Your Friend |
| AB | Ass Backwards |
| ABITHIWTIDB | A Bird In The Hand Is Worth Two In The Bush |
| ABT2 | About To |
| ACD | Alt Control Delete |
| ACE | Access Control Entry |
| ACK | Acknowledgement |
| ACORN | A Completely Obsessive Really Nutty person |
| ADAD | Another Day Another Dollar |
| ADBB | All Done Bye Bye |
| ADIH | Another Day In Hell |
| ADIP | Another Day In Paradise |
| ADN | Advanced Digital Network -or- Any Day Now |
| ADR | Address |
| AEAP | As Early As Possible |
| AFAGAY | A Friend As Good As You |
| AFAHMASP | A Fool And His Money Are Soon Parted |
| AFAIC | As Far As I'm Concerned |
| AFAICS | As Far As I Can See |
| AFAICT | As far As I can Tell |
| AFAIK | As Far As I Know |
| AFAIU | As Far As I Understand |
| AFAIUI | As Far As I Understand It |
| AFAP | As Far As Possible |
| AFAYC | As Far As You're Concerned |
| AFC | Away From Computer |
| AFDN | Any F***ing Day Now |
| AFGO | Another F***ing Growth Opportunity |
| AFIAA | As Far As I Am Aware |
| AFINIAFI | A Friend In Need Is A Friend Indeed |
| AFK | Away From Keyboard -or- A Free Kill |
| AFPOE | A Fresh Pair Of Eyes |
| AFT | About F***ing Time |
| AFZ | Acronym Free Zone |
| AGB | Almost Good Bridge |
| AGKWE | And God Knows What Else |
| AIAMU | And I'm A Monkey's Uncle |
| AIGHT | All Right |
| AIH | As It Happens |
| AIMB | As I Mentioned Before |
| AIMP | Always In My Prayers |
| AISB | As I Said Before |
| AISE | As I Said Earlier |
| AISI | As I See It |
| AKA or a.k.a. | Also Known As |
| ALAP | As Late As Possible |
| Alcon | All Concerned |
| ALOL | Actually Laughing Out Loud |
| ALOTBSOL | Always Look On The Bright Side Of Life |
| ALTG | Act Locally, Think Globally |
| AMAP | As Many As Possible -or- As Much As Possible |
| AMBW | All My Best Wishes |
| AMF | Adios Mother F***er |
| AML | All My Love |
| AMRMTYFTS | All My Roommates Thank You For The Show |
| ANFAWFOWS | And Now For A Word From Our Web Sponsor |
| ANFSCD | And Now For Something Completely Different |
| ANGB | Almost Nearly Good Bridge |
| AOAS | All Of A Sudden |
| AOB | Abuse Of Bandwidth |
| AON | Apropos Of Nothing |
| AP | Apple Pie |
| AS | Ape Sh** |
| ASAFP | As Soon As F***ing Possible |
| ASAMOF | As A Matter Of Fact |
| ASAP | As Soon As Possible |
| ASL | Age/Sex/Location |
| ASLMH | Age/Sex/Location/Music/Hobbies |
| ATAB | Ain't That A Bitch |
| ATC | Any Two Cards |
| ATST | At The Same Time |
| ATW | All the Web -or- Around the Web |
| AWGTHTGTTA | Are We Going To Have To Go Through This Again |
| AWGTHTGTTSA | Are We Going To Have To Go Through This Sh** Again |
| AWLTP | Avoiding Work Like The Plague |
| AWNIAC | All We Need Is Another Chair |
| AWOL | Absent Without Leave |
| AYC | Aren't You Clever -or- Aren't You Cheeky |
| AYCE | All You Can Eat |
| AYK | As You Know |
| AYSOS | Are You Stupid Or Something |
| AYTMTB | And You're Telling Me This Because |
| AYV | Are You Vertical? |
