Petra Macneary (Japanese: ペトラ＝マクネアリー, Hepburn: Petora Makunearī) is a character in the 2019 video game Fire Emblem: Three Houses.

In both Three Houses and Three Hopes, Petra's goals are generally the same: to gain allies and reclaim autonomy for Brigid, whether by befriending Edelgard (what she will do by default if not recruited) or via Byleth and their students.

Her status as a hostage is dramatically interesting, with Polygon writer Daniel Friedman noting the tension of the relationship between her and Edelgard due to this.

[4] The Mary Sue writer Madeline Carpou commented that they "side-eye[d]" the Black Eagles for forgetting that she was a prisoner of war, feeling that the alienation of foreign cultures in games like Three Houses was too easily remedied.

[5] Writers Rebecca Katherine Britt and PS Berge identify her as one of the few racially diverse characters in the game, noting that fan content often represented that fact.

She praised various elements of Petra's character, including her kindness, the importance of Brigid in her life, and her ability to overlook the association of certain friends to the people whom she hates.

She praised the ship due to Dorothea's goal of finding someone to take care of her when she loses her looks, and how romantic it is for Petra to sweep her off her feet as a princess.