JAN Views 14 meanings found JAN most commonly abbreviates the month of January, though it may also denote personal names, a nursing journal, or a U.S. employment‑accommodation resource. Medical Journal of Advanced Nursing Miscellaneous January Janice Just A Nurse Janet Just Act Naturally Janice In a nutshell Community Japanese American Nation Japanese Article Numbering Governmental Joint Army Navy Japanese Adopted Name Regional Jackson, Mississippi USA Business Job Accommodation Network Job Accomodation network