A glass antenna that is arranged at a glass plate, as viewed from a side facing a surface of the glass plate, comprising: a first feeding portion; a second feeding portion that is aligned with the first feeding portion; and an antenna conductor including a first antenna element that is connected to the first feeding portion and a second antenna element that is connected to the second feeding portion; wherein one of the first feeding portion and the second feeding portion is a signal-side feeding portion, and the other one of the first feeding portion and the second feeding portion is a ground-side feeding portion; the first antenna element includes an F-shaped element that is formed into an F-shape by a first linear conductor having one end connected either directly or via a connection conductor to the first feeding portion and extending in a horizontal direction, a second linear conductor extending in a vertical direction from another end of the first linear conductor as an origin, and a third linear conductor extending in the same direction as the second linear conductor from an intermediate point of the first linear conductor as an origin; and the second antenna element includes an L-shaped element that is formed into an L-shape by a fourth linear conductor having one end connected either directly or via a connection conductor to the second feeding portion and extending in a horizontal direction on a side of the first linear conductor on which the second linear conductor extends and a fifth linear conductor extending in a vertical direction from another end of the fourth linear conductor as an origin; characterized in that the fifth linear conductor extends between the second linear conductor and the third linear conductor. a first feeding portion; a second feeding portion that is aligned with the first feeding portion; and an antenna conductor including a first antenna element that is connected to the first feeding portion and a second antenna element that is connected to the second feeding portion; wherein one of the first feeding portion and the second feeding portion is a signal-side feeding portion, and the other one of the first feeding portion and the second feeding portion is a ground-side feeding portion; the first antenna element includes an F-shaped element that is formed into an F-shape by a first linear conductor having one end connected either directly or via a connection conductor to the first feeding portion and extending in a horizontal direction, a second linear conductor extending in a vertical direction from another end of the first linear conductor as an origin, and a third linear conductor extending in the same direction as the second linear conductor from an intermediate point of the first linear conductor as an origin; and the second antenna element includes an L-shaped element that is formed into an L-shape by a fourth linear conductor having one end connected either directly or via a connection conductor to the second feeding portion and extending in a horizontal direction on a side of the first linear conductor on which the second linear conductor extends and a fifth linear conductor extending in a vertical direction from another end of the fourth linear conductor as an origin; characterized in that the fifth linear conductor extends between the second linear conductor and the third linear conductor.