A physical quantity sensor comprising: a base part; and an element section adapted to detect a physical quantity, wherein the element section includes a stationary electrode section attached to the base part, and a movable section, which can be displaced in a first direction as a detection axis direction of the physical quantity, and is provided with a movable electrode section, the stationary electrode section includes a first stationary electrode section and a second stationary electrode section arranged side by side along a second direction perpendicular to the first direction, the first stationary electrode section includes a first trunk section, and a plurality of first stationary electrode fingers disposed on both sides in the second direction of the first trunk section and having a longitudinal direction along the second direction, the second stationary electrode section includes a second trunk section, and a plurality of second stationary electrode fingers disposed on both sides in the second direction of the second trunk section and having a longitudinal direction along the second direction, the movable electrode section includes a first movable electrode section and a second movable electrode section arranged side by side along the second direction, the first movable electrode section includes a plurality of first movable electrode fingers disposed on both sides in the second direction of the first trunk section, having a longitudinal direction along the second direction, and opposed to the first stationary electrode fingers in the first direction, and the second movable electrode section includes a plurality of second movable electrode fingers positioned on both sides in the second direction of the second trunk section, having a longitudinal direction along the second direction, and opposed to the second stationary electrode fingers in the first direction, characterized in that: the longitudinal direction of the first trunk section and the longitudinal direction of the second trunk section are each tilted with respect to the first direction and the second direction. a base part; and an element section adapted to detect a physical quantity, wherein the element section includes a stationary electrode section attached to the base part, and a movable section, which can be displaced in a first direction as a detection axis direction of the physical quantity, and is provided with a movable electrode section, a stationary electrode section attached to the base part, and a movable section, which can be displaced in a first direction as a detection axis direction of the physical quantity, and is provided with a movable electrode section, the stationary electrode section includes a first stationary electrode section and a second stationary electrode section arranged side by side along a second direction perpendicular to the first direction, the first stationary electrode section includes a first trunk section, and a plurality of first stationary electrode fingers disposed on both sides in the second direction of the first trunk section and having a longitudinal direction along the second direction, a first trunk section, and a plurality of first stationary electrode fingers disposed on both sides in the second direction of the first trunk section and having a longitudinal direction along the second direction, the second stationary electrode section includes a second trunk section, and a plurality of second stationary electrode fingers disposed on both sides in the second direction of the second trunk section and having a longitudinal direction along the second direction, a second trunk section, and a plurality of second stationary electrode fingers disposed on both sides in the second direction of the second trunk section and having a longitudinal direction along the second direction, the movable electrode section includes a first movable electrode section and a second movable electrode section arranged side by side along the second direction, the first movable electrode section includes a plurality of first movable electrode fingers disposed on both sides in the second direction of the first trunk section, having a longitudinal direction along the second direction, and opposed to the first stationary electrode fingers in the first direction, and the second movable electrode section includes a plurality of second movable electrode fingers positioned on both sides in the second direction of the second trunk section, having a longitudinal direction along the second direction, and opposed to the second stationary electrode fingers in the first direction, characterized in that: the longitudinal direction of the first trunk section and the longitudinal direction of the second trunk section are each tilted with respect to the first direction and the second direction.