龙宫礼奈，日本同人社团07th Expansion所制作的游戏《寒蝉鸣泣之时》及其衍生作品中的女性角色。本名龙宫礼奈，父母离婚后，再次搬回雏见泽时，打算重新开始，忘掉兴宫和过去，于是自称蕾娜（レナ）。

Ryūgū Rena (竜宮 レナ) is one of the main characters in the Higurashi no Naku Koro ni series who acts as the protagonist of Tsumihorobo-hen and the antagonist of Tsukioto-hen, Onikaku-hen, and Onidama-hen. Rena is a signature character as she is featured more than once during the first anime season-opening, as well as appearing on most of the album and game covers. She appears in much of Higurashi's official art and even serves as something of a mascot for 07th Expansion.