| ATGC | Adenine Thymine Guanine Cytosine 
| Others |
| ATGC | Advanced Tele Genetic Counseling
| Others |
| ATGC | AIDS Taskforce of Greater Cleveland
| Others |
| ATGC | Alignable Tight Genomic Cluster
| Others |
| ATGC | Applied Translational Genomics Cloud
| Others |
| ATGC | Association of Therapeutic Goods Consultants
| Others |
| ATGC | Asthma Translational Genomics Collaborative
| Others |
| ATGC | Australian Translational Genomics Centre
| Others |
| ATGC | Aviation Electronics Technician (ground) Chief Petty Officer
| Others |