 | Hachure |
| Hachured Contour |
| Hacker |
| Half Life |
| Halftone Image |
| Halo |
| Hamiltonian Circuit |
| Hamiltonian Path |
| Hamper |
| Handbook |
| Handle |
| Handling Charge |
| Handshaking |
| Hand-Stamped Cancellation |
| Hanedashi |
| Hang the Rack |
| Hansei Event |
| Hard Bounce |
| Hard Copy |
| Hard Disk |
| Hards |
| Hard Savings |
| Hardware Authenticator |
| Hardware Key |
| Hardware Node |
| Harmonization |
| Hash / Hashing / Hash Algorithm |
| Hatch Class |
| Hatch Definition |
| Hatches |
| Hatching |
| Hatch Style |
| Hawthorne Effect / Hawthorn Effect |
| Hazardous Material |
| Hazardous Waste |
| Header |
| Heading |
| Headline |
| Head of Family |
| Head-out |
| Headquarters |
| Heads-Up Digitizing |
| Healthcare Interpreting |
| Health Insurance Portability and Accountability Act (HIPAA) |
| Heap |
| Heat Transfer |
| Heavy |
| Hectare |
| Height |
| Heijunka |
| Heimert Transformation |
| Help |
| Help Desk |
| Help Desk Administrator |
| Hemisphere |
| Heterogeneous Database Integration |
| Heterogeneous Systems |
| Heuristic / Heuristics |
| Heuristic Data Cleansing |
| Hexadecimal |
| Hidden complaint |
| Hidden Factory, The |
| Hidden information factory |
| Hierarchical Database |
| Hierarchical Database |
| Hierarchy |
| Hierarchy / Hierarchies / Hierarchical Relationships |
| Hierarchy Management |
| High Accuracy Reference Network (HARN) |
| High Availability |
| High-Demand Languages (HDL) |
| High-Level Enterprise Model |
| High-Level Language |
| Highlighting |
| Highly Correlated List (HCL) |
| Highly Summarised / Highly Summarized Data |
| High-Pass Filter |
| High Rise |
| High School Students |
| High Ticket Buyers |
| Highway Contract Route (HCR) |
| Highway Contract Route Transportation Pay Cycle (HCR-TPC) |
| Hijacking |
| Hillshading |
| Histogram |
| Histogram |
| Histogram Equalization |
| Historical Databases |
| Historical Perspective |
| Hit |
| Holding the gain |
| Holding Time |
| Holdout |
| Hole |
| Home Business |
| Home Buyer |
| Homeland Security Presidential Directive – Number 12 (HSPD-12) |
| Home Offices |
| Homeostatis |
| Home Ownership |
| Homogeneity of Variance |
| Homogenization |
| Homographs |
| Homonym |
| Homophones |
| Honor |
| Honorific |
| Hooke's Law |
| Horizon |
| Horizon Circle |
| Horizontal Angle |
| Horizontal Bars |
| Horizontal Control |
| Horizontal Dilution of Precision (HDOP) |
| Horizontal Geodetic Datum |
| Horizontal Partitioning |
| Hoshin planning / Hoshin Kanri |
| Host |
| Host-Driven |
| Hot Case |
| Hotelling's T2 Model |
| Hot House |
| Hotline / Hot Line |
| Hot Mail |
| Hot Stamp |
| House File |
| Householding |
| Households |
| House List |
| House Mail |
| House of Quality |
| HRESULT |
| HSV |
| HTML Document |
| Hub |
| Hub-and-Spoke |
| Hub and Spoke Program (HASP) |
| Hue |
| Human-Assisted Machine Translation (HAMT) |
| Human-Delivered Service Company |
| Human error |
| Human factors |
| Human Geography |
| Human Technology Environment |
| Human Technology Interface (HTI) |
| Human Translation (HT) |
| Human Translator |
| Hydrographic Datum |
| Hydrographic Survey |
| Hydrography |
| Hypbrid OLAP (HOLAP) |
| Hyper-Cube / Hypercube |
| Hyperlink |
| Hypermedia |
| Hyper Micro Process Map |
| Hypertext |
| Hypertext Markup Language (HTML) |
| HyperText Transfer Protocol (HTTP) |
| Hypertext Transfer Protocol (Secure) (HTTPS) |
| Hypocoristic name |
| Hypothesis Testing |
| Hypothetical reasoning |
| Hypsography |
| Hypsometric Curve |
| Hypsometric Map |
| Hypsometric Tinting |
| Hypsometry |
