Let
G
be a graph with
n
vertices, and let
L
G
and
Q
G
denote the Laplacian matrix and signless Laplacian matrix, respectively. The Laplacian (respectively, signless Laplacian) permanental polynomial of
G
is defined as the permanent of the characteristic matrix of
L
G
(respectively,
Q
G
). In this paper, we show that almost complete graphs are determined by their (signless) Laplacian permanental polynomials.