H+ or h+ may refer to:
Science and technology Electron hole, h+ the conceptual opposite of an electron Evolved High Speed Packet Access, H+ mobile phone icon Hydron (chemistry), H+ a cationic form of atomic hydrogen
Other H (S-train), a rail service in Copenhagen, Denmark H+: The Digital Series, a science-fiction web series H+ (album), a 2018 solo album by Jean-Benoît Dunckel Humanity+, an international organisation and magazine that advocates transhumanism Transhumanist Party, whose symbol is H+