Provided is an absorbent article for pets preventing an absorbent core from preventing the movement of hind legs of a pet. An absorbent article (10) has a longitudinal direction (Y) and a lateral direction (X) orthogonal to the longitudinal direction (Y) and includes: a belly facing region (11), a back facing region (12), an intermediate region (13) positioned between the belly facing region (11) and the back facing region (12) in the longitudinal direction (Y), and an absorbent member (50) including an absorbent core (51). The absorbent member (50) is only disposed in a portion closer to the belly facing region (11) than a cut line (48) in which the tail (1) of a pet (2) is inserted, and includes: both absorbent side edges (50c) opposite to each other in the lateral direction (X), a first absorbent portion (53) facing a urine opening of the pet (2), and a second absorbent portion (54) facing a portion outside the urine opening, and the absorbent core (51) includes an first narrow portion (interruption portion) (61) configured to interrupt linkage between the first absorbent portion (53) and the second absorbent portion (54) in the longitudinal direction (Y).
