| CFL | Canadian Football League |
| NL | National League [Baseball] |
| LPF | League for Programming Freedom |
| MLB | Major League Baseball |
| NFL | National Football League |
| NGL | Netzstatt Gaming League Berlin, http://www.ngl-germany.de |
| PGL | Professional Games League |
| AL | Arab League [engl.] Arabische Liga |
| ESL | Electronic Sports League |
| USFL | United States Football League |
| WHBL | World Home Bible League |
| ISWL | International Short Wave League |
| AL | American League [baseball] [engl.] |
| ADL | Anti-Defamation League [engl.] Amerikanische Liga zur Unterbindung der Diffamierung von Juden |
| AHL | American Hockey League [engl.] |
| AFL | American Football League [engl.] |
| ARRL | American Radio Relay League [engl.] Amerikanischer Verband der Funk-Amateure |
| NHL | National Hockey League [the nation is Canada] |
| Hum. Ecol. | Human Ecology Zeitschrift |
| Hum. Organ. | Human Organization Zeitschrift |
| HR | Human Resources |
| HHN | HUMAN HELP NETWORK e.V. |
| HUGO | Human Genome Organization |
| HRW | Human Rights Watch |
| IHR | Institut Human Resource Wachtberg/ Bonn |
| HPL | Human Placental Lactogen |
| HFE | Human Factors Engineering |
| HGP | Human Genome Project vgl. DHGP |
| HPV | Human Papilloma Virus |
| HIL | Human Interface Link [HP] |
| HIV | Human-Immunschwäche-Virus |
| HMI | Human Machine Interface |
| HUPO | Human Proteom Organization |
| DHHS | Department of Health and Human Services |
| CHI | Computer Human Interaction/Interface |
| HTD | Human Therapeutic Dose [engl.] für Menschen geeignete Dosis |
| HRMS | Human Resource Management System |
| HRIS | Human Resource Information System |
| HRC | Menschenrechtsausschuß [Human Rights Committee] |
| HID | Human Interface Device [Profile] |
| HGDP | Human Genome Diversity Project |
| HCMP | Human Capital and Mobility Programme |
| HCI | Human Computer Interaction/Interface |
| UNCHS | United Nations Center for Human Settlements Zentrum der Vereinten Nationen für Wohn- und Siedlungswesen |
| HAAPI | Human Authentication Application Program Interface |
| ECHO | Enteric Cytopathogenic Human Orphan [Viren] |
| HHS | Department of Health and Human Services [U.S. Regierung] |
| ZHGB | Zentrum für Human- und Gesundheitswissenschaften der Berliner Hochschulmedizin |
| ENITH | European Network for Information Technology in Human Services |
| UDHR | Universal Declaration of Human Rights/ Allgemeine Erklärung der Menschenrechte vgl. http://www.unhchr.ch/udhr/lang/ger.htm |