Adjustable license plate brackets for vehicles comprising a first bracket element that is secured to a vehicle; a second bracket element having an upper end to be connected to a license plate and a lower end disposed upon the first end of the first bracket element; and a third bracket element having an upper end to be connected to a license plate and a lower end disposed upon the second end of the first bracket element. The second bracket element and the third bracket element are configured to be connected to the first bracket element at a plurality of positions, implemented using an elongated aperture with a plurality of notches into which a bracket element connector can be inserted, respective so that a distance between the upper ends of the second and the third bracket elements varies to accommodate license plates with different sizes.