Abstract: An adjustable curtain rod support includes a horizontal slide plate and two attachment leaves integral with the slide plate for attaching the adjustable curtain rod support to a window frame. One attachment leaf is bent behind and parallel to the slide plate. The other attachment leaf is bent behind the slide plate and is either parallel or perpendicular to the slide plate. A slide assembly is adjustably attached to the slide plate and includes a back plate and a front plate. The back plate and the front plate are disposed on opposite sides of the slide plate. A curtain rod or shade support element is attached to the front plate. A second slide assembly is also adjustably attached to the slide plate for supporting a second curtain rod.