| ARK | Acknowledge And Reward Kids 
| Others |
| ARK | Act of Random Kindless
| Others |
| ARK | Act of Random Kindness
| Others |
| ARK | Actively Restoring Kids
| Others |
| ARK | Activities and Recreation for Koinonia
| Others |
| ARK | Acts of Random Kindness
| Others |
| ARK | Acts of Regular Kindness
| Others |
| ARK | Acts of Restorative Kindness
| Others |
| ARK | Actuator Repair Kit
| Others |
| ARK | Address Resolution Key
| Others |
| ARK | Address Resolution Keys
| Others |
| ARK | Admin Report Kit
| Others |
| ARK | Adults Relating To Kids
| Others |
| ARK | Advanced Rendering Kernel
| Others |
| ARK | Advanced Resources For Kids
| Others |
| ARK | Advances in Robot Kinematics
| Others |
| ARK | Advisors Of Rubi Ka
| Others |
| ARK | Advocacy Respect and Knowledge
| Others |
| ARK | Akasaka Roppongi Knot
| Others |
| ARK | Akira Reina Kaiba
| Others |
| ARK | Akita Rescue Kennels
| Others |
| ARK | Albany Rods and Kustoms
| Others |
| ARK | Alfa Romeo Klub
| Others |
| ARK | Altogether Ready For Kinship
| Others |
| ARK | Amazing Righteous Kids
| Others |
| ARK | Amos Rehabilitation Keep
| Others |
| ARK | Animal Refuge Kansai
| Others |
| ARK | Anti Roll Kit
| Others |
| ARK | Anti Root Kit
| Others |
| ARK | Applied Research Knowledge
| Others |
| ARK | ARC archive file
| Others |
| ARK | Architektur Recycled Kulturstall
| Others |
| ARK | Archival Resource Key
| Others |
| ARK | Archiving Tool for Kde
| Others |
| ARK | ARKeoloji
| Others |
| ARK | Artists Reaching Kids
| Others |
| ARK | Arts Reaching Kids
| Others |
| ARK | Assessment Resource Kit
| Others |
| ARK | Assets Resources And Knowledge
| Others |
| ARK | At Risk Kids
| Others |
| ARK | Athletes Running for Kids
| Others |
| ARK | Attentive Reliable and Knowledgeable
| Others |
| ARK | Augmented Reality Kick
| Others |
| ARK | Auto Rally Klub
| Others |
| ARK | Automated Relational Knowledge
| Others |
| ARK | Automated Relational Knowledgebase
| Others |
| ARK | Automatische Reifendruck Kontrolle
| Others |
| ARK | Automotive Resource Kit
| Others |
| ARK | Managing your Money Archive file
| Others |
| ARK | QUARK Compressed file archive
| Others |