ATII
| Acronym | Definition |
|---|---|
| ATII | Advanced Training Institute International |
| ATII | Alliance Tuna International, Inc. (Philippines) |
| ATII | Alveolar Type II Epithelial Cell |
| ATII | Acoustic Technology International, Inc. (Oberlin, OH) |
| ATII | Advanced Techniques for Imagery Interpretation |
| ATII | Associate of Taxation Institute Incorporated (UK) |