An aircraft passenger seat, comprising: a base and a backrest extending from the base, the backrest having a backrest frame; and a headrest, comprising: a displacement member mounted to the backrest frame, a lower end of the displacement member being positioned in front of the backrest frame and above the base, the displacement member being displaceable relative to the backrest frame to adjust a height of the headrest with respect to the backrest frame; and a tilt member extending between a pivot end pivotably mounted to the displacement member at a joint, and a head support end disposed above the pivot end to support a rear portion of a head of an occupant of the seat, the joint defining a pivot axis and being positioned in front of the backrest frame and above the base, the tilt member being pivotable about the pivot axis to displace the head support end toward and away from the displacement member; wherein the displacement member has a front portion with an upright segment positioned in front of the backrest frame and above the base, the upright segment being connected to the tilt member at the joint and extending upward therefrom to a transverse segment extending transversely to the upright segment. a base and a backrest extending from the base, the backrest having a backrest frame; and a headrest, comprising: a displacement member mounted to the backrest frame, a lower end of the displacement member being positioned in front of the backrest frame and above the base, the displacement member being displaceable relative to the backrest frame to adjust a height of the headrest with respect to the backrest frame; and a tilt member extending between a pivot end pivotably mounted to the displacement member at a joint, and a head support end disposed above the pivot end to support a rear portion of a head of an occupant of the seat, the joint defining a pivot axis and being positioned in front of the backrest frame and above the base, the tilt member being pivotable about the pivot axis to displace the head support end toward and away from the displacement member; wherein the displacement member has a front portion with an upright segment positioned in front of the backrest frame and above the base, the upright segment being connected to the tilt member at the joint and extending upward therefrom to a transverse segment extending transversely to the upright segment. a displacement member mounted to the backrest frame, a lower end of the displacement member being positioned in front of the backrest frame and above the base, the displacement member being displaceable relative to the backrest frame to adjust a height of the headrest with respect to the backrest frame; and a tilt member extending between a pivot end pivotably mounted to the displacement member at a joint, and a head support end disposed above the pivot end to support a rear portion of a head of an occupant of the seat, the joint defining a pivot axis and being positioned in front of the backrest frame and above the base, the tilt member being pivotable about the pivot axis to displace the head support end toward and away from the displacement member; wherein the displacement member has a front portion with an upright segment positioned in front of the backrest frame and above the base, the upright segment being connected to the tilt member at the joint and extending upward therefrom to a transverse segment extending transversely to the upright segment.