A sunshade for a vehicle includes a pair of guide rails extended at a side edge of a light passing portion provided on a vehicle roof, the guide rails arranged opposite to each other, plural extending portions formed on each of the guide rails and extending towards the opposite guide rail, the extending portions defining slide recessed grooves, a sliding member supported by the extending portions and slidably provided in each of the slide recessed grooves, an engaging portion formed on said each sliding member, and plural shade panels slidably supported in the slide recessed grooves, respectively, via the sliding member, the shade panels being configured to interoperate each other by an engagement of each of the engaging portions during at least one of an opening operation and a closing operation of the sunshade.