Haemostasiology
Hamiltonian mechanics
Harmonic analysis
Health Care Policy and Management
Health Economics and Econometrics
Health Economics and Health Policy
Health informatics

Health informatics/Clinical informatics

Health policy
Health psychology
Heat transfer
Helioseismology
Helminthology
Hematology
Hematopathology
Hepatology
Hermeneutics
Herpetology
Heterosexism
High-energy astronomy
High-energy astrophysics
High-performance computing
Higher education
Highway engineering
Highway safety
Hindu ethics
Hinduism
Histochemistry
Histology
Histopathology
Historic preservation
Historical archaeology
Historical geography
Historical linguistics
Historical musicology
Historical sociology
Historical theology
History
History of archaeology
History of computer hardware
History of computer science
History of dance
History of library science
History of linguistics
History of literature
History of philosophy
History of the Roman Empire
History of the Roman Republic
Homeokinetics
Homiletics
Homological algebra
Horticulture
Household archaeology
Housing
Housing policy
Human anatomy
Human behavioral ecology
Human biology
Human development theory
Human ecology
Human evolution
Human geography
Human physical performance and recreation
Human physiology
Human resources
Human resources management
Human Services
Human sexual behavior
Human sexuality
Human spaceflight
Human-computer interaction
Humanism
Humanistic informatics
Humanistic psychology
Humanistic sociology
Human–computer interaction
Hydraulic engineering
Hydraulics
Hydrodynamics
Hydrogenation
Hydrogeology
Hydrology
Hydrology/Hydrography
Hydroponics