A water dispenser includes a raw water container having an inner tube a water outlet port of the raw water container. The inner tube is provided with a stepped portion having a smaller diameter at its portion closer to the interior of the raw water container, and a fastening belt portion formed contiguous to the stepped portion on the smaller diameter side thereof. The water server also includes a joint portion in the form of a cylindrical member including a straight portion (73) configured to be fitted tightly to the fastening belt portion, and provided with a water flow hole formed in a size so as not to cover the entire axial width of the fastening belt portion while the straight portion is being inserted into the fastening belt portion.