| .grainger | Generic | Grainger Registry Services, LLC | — | — |
| .graphics | Generic | Binky Moon, LLC | — | — |
| .gratis | Generic | Binky Moon, LLC | — | — |
| .green | Generic | Identity Digital Limited | — | — |
| .gripe | Generic | Binky Moon, LLC | — | — |
| .grocery | Generic | Wal-Mart Stores, Inc. | — | — |
| .group | Generic | Binky Moon, LLC | — | — |
| .gs | Country Code | Government of South Georgia and South Sandwich Islands (GSGSSI) | 🇬🇸South Georgia | — |
| .gt | Country Code | Universidad del Valle de Guatemala | 🇬🇹Guatemala | — |
| .gu | Country Code | University of Guam | 🇬🇺Guam | — |
| .gucci | Generic | Guccio Gucci S.p.a. | — | — |
| .guge | Generic | Charleston Road Registry Inc. | — | — |
| .guide | Generic | Binky Moon, LLC | — | — |
| .guitars | Generic | XYZ.COM LLC | — | — |
| .guru | Generic | Binky Moon, LLC | — | — |
| .gw | Country Code | Autoridade Reguladora Nacional - Tecnologias de Informação e Comunicação da Guiné-Bissau | 🇬🇼Guinea-Bissau | — |
| .gy | Country Code | University of Guyana | 🇬🇾Guyana | — |
| .hair | Generic | XYZ.COM LLC | — | — |
| .hamburg | Generic | Hamburg Top-Level-Domain GmbH | — | — |
| .hangout | Generic | Charleston Road Registry Inc. | — | — |
| .haus | Generic | Dog Beach, LLC | — | — |
| .hbo | Generic | HBO Registry Services, Inc. | — | — |
| .hdfc | Generic | HOUSING DEVELOPMENT FINANCE CORPORATION LIMITED | — | — |
| .hdfcbank | Generic | HDFC Bank Limited | — | — |
| .health | Generic | Registry Services, LLC | — | — |
| .healthcare | Generic | Binky Moon, LLC | — | — |
| .help | Generic | Innovation Service Ltd | — | — |
| .helsinki | Generic | City of Helsinki | — | — |
| .here | Generic | Charleston Road Registry Inc. | — | — |
| .hermes | Generic | Hermes International | — | — |
| .hiphop | Generic | Dot Hip Hop, LLC | — | — |
| .hisamitsu | Generic | Hisamitsu Pharmaceutical Co.,Inc. | — | — |
| .hitachi | Generic | Hitachi, Ltd. | — | — |
| .hiv | Generic | Internet Naming Co. | — | — |
| .hk | Country Code | Hong Kong Internet Registration Corporation Ltd. | 🇭🇰Hong Kong | — |
| .hkt | Generic | PCCW-HKT DataCom Services Limited | — | — |
| .hm | Country Code | HM Domain Registry | 🇭🇲Heard Island and McDonald Islands | — |
| .hn | Country Code | Red de Desarrollo Sostenible Honduras | 🇭🇳Honduras | — |
| .hockey | Generic | Binky Moon, LLC | — | — |
| .holdings | Generic | Binky Moon, LLC | — | — |
| .holiday | Generic | Binky Moon, LLC | — | — |
| .homedepot | Generic | Home Depot Product Authority, LLC | — | — |
| .homegoods | Generic | The TJX Companies, Inc. | — | — |
| .homes | Generic | XYZ.COM LLC | — | — |
| .homesense | Generic | The TJX Companies, Inc. | — | — |
| .honda | Generic | Honda Motor Co., Ltd. | — | — |
| .horse | Generic | Registry Services, LLC | — | — |
| .hospital | Generic | Binky Moon, LLC | — | — |
| .host | Generic | Radix Technologies Inc. | — | — |
| .hosting | Generic | XYZ.COM LLC | — | — |