| .kred | Generic | KredTLD Pty Ltd | — | — |
| .kuokgroup | Generic | Kerry Trading Co. Limited | — | — |
| .kw | Country Code | Communications and Information Technology Regulatory Authority | 🇰🇼Kuwait | — |
| .ky | Country Code | Utility Regulation and Competition Office (OfReg) | 🇰🇾Cayman Islands | — |
| .kyoto | Generic | Academic Institution: Kyoto Jyoho Gakuen | — | — |
| .kz | Country Code | Association of IT Companies of Kazakhstan | 🇰🇿Kazakhstan | — |
| .la | Country Code | Lao National Internet Center (LANIC), Ministry of Technology and Communications | 🇱🇦Laos | — |
| .lacaixa | Generic | Fundación Bancaria Caixa d'Estalvis i Pensions de Barcelona, "la Caixa" | — | — |
| .lamborghini | Generic | Automobili Lamborghini S.p.A. | — | — |
| .lamer | Generic | The Estée Lauder Companies Inc. | — | — |
| .land | Generic | Binky Moon, LLC | — | — |
| .landrover | Generic | Jaguar Land Rover Ltd | — | — |
| .lanxess | Generic | LANXESS Corporation | — | — |
| .lasalle | Generic | Jones Lang LaSalle Incorporated | — | — |
| .lat | Generic | XYZ.COM LLC | — | — |
| .latino | Generic | Dish DBS Corporation | — | — |
| .latrobe | Generic | La Trobe University | — | — |
| .law | Generic | Registry Services, LLC | — | — |
| .lawyer | Generic | Dog Beach, LLC | — | — |
| .lb | Country Code | Internet Society Lebanon | 🇱🇧Lebanon | — |
| .lc | Country Code | University of Puerto Rico | 🇱🇨Saint Lucia | — |
| .lds | Generic | IRI Domain Management, LLC | — | — |
| .lease | Generic | Binky Moon, LLC | — | — |
| .leclerc | Generic | A.C.D. LEC Association des Centres Distributeurs Edouard Leclerc | — | — |
| .lefrak | Generic | LeFrak Organization, Inc. | — | — |
| .legal | Generic | Binky Moon, LLC | — | — |
| .lego | Generic | LEGO Juris A/S | — | — |
| .lexus | Generic | TOYOTA MOTOR CORPORATION | — | — |
| .lgbt | Generic | Identity Digital Limited | — | — |
| .li | Country Code | SWITCH The Swiss Education & Research Network | 🇱🇮Liechtenstein | — |
| .lidl | Generic | Schwarz Domains und Services GmbH & Co. KG | — | — |
| .life | Generic | Binky Moon, LLC | — | — |
| .lifeinsurance | Generic | American Council of Life Insurers | — | — |
| .lifestyle | Generic | Internet Naming Co. | — | — |
| .lighting | Generic | Binky Moon, LLC | — | — |
| .like | Generic | Amazon Registry Services, Inc. | — | — |
| .lilly | Generic | Eli Lilly and Company | — | — |
| .limited | Generic | Binky Moon, LLC | — | — |
| .limo | Generic | Binky Moon, LLC | — | — |
| .lincoln | Generic | Ford Motor Company | — | — |
| .link | Generic | Nova Registry Ltd. | — | — |
| .live | Generic | Dog Beach, LLC | — | — |
| .living | Generic | Internet Naming Co. | — | — |
| .lk | Country Code | Council for Information Technology
LK Domain Registrar | 🇱🇰Sri Lanka | — |
| .llc | Generic | Identity Digital Limited | — | — |
| .llp | Generic | Intercap Registry Inc. | — | — |
| .loan | Generic | dot Loan Limited | — | — |
| .loans | Generic | Binky Moon, LLC | — | — |
| .locker | Generic | Orange Domains LLC | — | — |
| .locus | Generic | Locus Analytics LLC | — | — |