A leaning vehicle comprising: a vehicle-body frame capable of inclining to the left of the vehicle while the vehicle is turning to the left, and inclining to the right of the vehicle while the vehicle is turning to the right; a front wheel and a rear wheel supported on the vehicle-body frame; a front-wheel brake provided on the front wheel for applying braking force to the front wheel; a rear-wheel brake provided on the rear wheel for applying braking force to the rear wheel; a front-wheel braking operation element operable by a rider for generating braking force for the front-wheel brake in response to an operation; a rear-wheel braking operation element operable by the rider for generating braking force for the rear-wheel brake in response to an operation; and an interlock braking apparatus configured to perform at least one of an operation in which braking force is applied not only to the front wheel but also to the rear wheel when the rider has operated the front-wheel braking operation element and an operation in which braking force is applied not only to the rear wheel but also to the front wheel when the rider has operated the rear-wheel braking operation element, characterized in that the interlock braking apparatus is configured to control the braking force being applied to the front wheel and the braking force being applied to the rear wheel in such a manner that a ratio of the braking force being applied to the rear wheel to the braking force being applied to the front wheel when the front-wheel braking operation element is being operated and the rear-wheel braking operation element is not being operated while the vehicle is travelling on a downhill slope or uphill slope is different from a ratio of the braking force being applied to the rear wheel to the braking force being applied to the front wheel when the front-wheel braking operation element is being operated and the rear-wheel braking operation element is not being operated while the vehicle is travelling on a horizontal road surface, or the interlock braking apparatus is configured to control the braking force being applied to the front wheel and the braking force being applied to the rear wheel in such a manner that a ratio of the braking force being applied to the front wheel to the braking force being applied to the rear wheel when the rear-wheel braking operation element is being operated and the front-wheel braking operation element is not being operated while the vehicle is travelling on a downhill slope or uphill slope is different from a ratio of the braking force being applied to the front wheel to the braking force being applied to the rear wheel when the rear-wheel braking operation element is being operated and the front-wheel braking operation element is not being operated while the vehicle is travelling on a horizontal road surface. a vehicle-body frame capable of inclining to the left of the vehicle while the vehicle is turning to the left, and inclining to the right of the vehicle while the vehicle is turning to the right; a front wheel and a rear wheel supported on the vehicle-body frame; a front-wheel brake provided on the front wheel for applying braking force to the front wheel; a rear-wheel brake provided on the rear wheel for applying braking force to the rear wheel; a front-wheel braking operation element operable by a rider for generating braking force for the front-wheel brake in response to an operation; a rear-wheel braking operation element operable by the rider for generating braking force for the rear-wheel brake in response to an operation; and an interlock braking apparatus configured to perform at least one of an operation in which braking force is applied not only to the front wheel but also to the rear wheel when the rider has operated the front-wheel braking operation element and an operation in which braking force is applied not only to the rear wheel but also to the front wheel when the rider has operated the rear-wheel braking operation element, characterized in that the interlock braking apparatus is configured to control the braking force being applied to the front wheel and the braking force being applied to the rear wheel in such a manner that a ratio of the braking force being applied to the rear wheel to the braking force being applied to the front wheel when the front-wheel braking operation element is being operated and the rear-wheel braking operation element is not being operated while the vehicle is travelling on a downhill slope or uphill slope is different from a ratio of the braking force being applied to the rear wheel to the braking force being applied to the front wheel when the front-wheel braking operation element is being operated and the rear-wheel braking operation element is not being operated while the vehicle is travelling on a horizontal road surface, or the interlock braking apparatus is configured to control the braking force being applied to the front wheel and the braking force being applied to the rear wheel in such a manner that a ratio of the braking force being applied to the front wheel to the braking force being applied to the rear wheel when the rear-wheel braking operation element is being operated and the front-wheel braking operation element is not being operated while the vehicle is travelling on a downhill slope or uphill slope is different from a ratio of the braking force being applied to the front wheel to the braking force being applied to the rear wheel when the rear-wheel braking operation element is being operated and the front-wheel braking operation element is not being operated while the vehicle is travelling on a horizontal road surface.