A securement device for securing a catheter to a patient comprises a pad having adhesive on at least a portion of the bottom surface. A fixed plate and a rotatabie adjustable plate are affixed to the pad. The adjustable plate is rotated with respect to the fixed plate to secure a catheter. Posts are on the fixed plate and the adjustable plate to secure a winged catheter. A bracket can be affixed to a fixed plate or an adjustable plate and a cooperating tab can be affixed to the other plate for securing a catheter there between. In a further modification, a base is secured to a pad and a pair of plates is pivotally mounted on the base for rotation with respect to one another. Complementary pawl and ratchet members enable limited rotation of plates with respect to one another and to fix plates in selected adjustment position.