To provide a vehicle room lamp capable of preventing the catching in a contact portion when operating a knob to change over a lighting method, and obtaining a smooth operation feeling.

In this room lamp, a plurality of terminals 25, 26, 27 are held by a base member 21 fixed to a vehicle fixing stay 7, a contact 28 capable of being energized and contacted with the terminals 25, 26, 27 is held by the switching knob 14 changing over the lighting method for a bulb held by the base member 21, the plurality of terminals 25, 26, 27 are formed with contact protuberances 25a, 25b, 26a, 27a capable of contacting with the contact 28, and ribs 24e extended along a displacement direction of the knob 24 from an end face of the knob 24 opposite to the contact protuberances 25a, 25b, 26a, 27a and formed with round parts 24f in corner parts are formed.