A trim panel (10) for the interior (11) of an aircraft (E), the panel having a multilayer structure and including an outer layer (12) made of material impervious to air, and which is positioned in use facing the fuselage of the aircraft (E); an inner layer (13) made of trim material, and which in use defines the interior (11); a structural layer (14) interposed between the inner and outer layer (13, 12); and acoustic energy dissipating material (17, 21), also interposed between the inner (13) and outer (12) layer; the inner layer (13) being made of porous material allowing airflow towards the acoustic energy dissipating material (17, 21).
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