| Hack | 2014 | — | dynamic typing, gradual typing, static typing, inference typing, weak typing | — |
| HAL/S | 1978 | procedural programming, structured programming | — | — |
| Hale | 2026 | concurrent computing, structured programming, imperative programming, actor model | — | — |
| Halide | 2012 | functional programming, parallel programming | static typing | — |
| Hamilton C shell | 1988 | — | — | — |
| Haml | — | web template system | — | 1 |
| Handel-C | 2005 | imperative programming | manifest typing, nominative typing, inference typing | — |
| Harbour | 1999 | reflective programming, procedural programming, functional programming, imperative programming, multi-paradigm programming, declarative programming, object-oriented programming | dynamic typing, duck typing, safe typing, strong typing | — |
| Hare | — | — | static typing | — |
| Hartmann pipeline | 1986 | dataflow programming, functional programming, function-level programming, concatenative programming | — | — |
| Haskell | 1990 | functional programming, purely functional programming, non-strict programming | static typing, inference typing, strong typing | 24 |
| Haxe | 2005 | generic programming, functional programming, multi-paradigm programming, object-oriented programming | dynamic typing, static typing, nominative typing, inference typing | — |
| Helium | — | — | — | — |
| Hewlett-Packard Graphics Language | — | — | — | — |
| HiAsm | — | — | — | — |
| Hierarchical Music Specification Language | — | — | — | — |
| High Level Assembly | — | object-oriented programming | — | — |
| High Level Shader Language | — | — | — | — |
| High Performance Fortran | 1993 | concurrent computing | — | 1 |
| Hollywood | 2002 | procedural programming | — | — |
| HolyC | — | — | — | — |
| Honeywell ARGUS | — | — | — | — |
| Hop | 2006 | multitier programming, functional programming, multi-paradigm programming | dynamic typing, strong typing | — |
| Hope | 1970 | functional programming | static typing | 1 |
| Hot Soup Processor | 1996 | — | — | — |
| HP BASIC for OpenVMS | — | imperative programming | — | — |
| HPCC | — | declarative programming | — | — |
| Hy | 2013 | generic programming, procedural programming, imperative programming, metaprogramming, object-oriented programming | — | — |
| Hybris | 2009 | procedural programming | — | — |
| Hyperscript | 2020 | — | — | — |
| HyperTalk | 1987 | event-driven programming, procedural programming | weak typing | 5 |