- housing
- hub
- human bias
- humidity meter
- hundredth
- hunt
- hybrid matrix
- hydraulic analogue
- hydraulic radius
- hydraulic stability
- hydrographic measurement
- hydromechanics
- hydrostatic curve
- hyperbolic catenary
- hyperbolic collineation
- hyperbolic congruence
- hyperbolic cylinder
- hyperbolic equation
- hyperbolic function
- hyperbolic geometry
- hyperbolic homology
- hyperbolic involution
- hyperbolic lines
- hyperbolic locus
- hyperbolic measure
- hyperbolic plane
- hyperbolic point
- hyperbolic sector
- hyperbolic space
- hyperboloid
- hyperfuchsian group
- hypergeometric curve
- hypergeometric equation
- hypergeometric series
- hyperharmonic
- hyperlink
- hypermetric
- hypernormal
- hyperorthogonal group
- hypertorus
- hypocycloid
- hydraulic seal
- hydrostatic catenary
- hyper-real
- hyperabelian group
- hyperareal
- hyperareal metric
- hypercomplex system
- hypercube
- hyperelliptic curve
- hypergeometric polynomial
- hyperhomology
- hypermedia document
- hypersonic flow
- hypervolume
- hypoelliptic
- hypothesis generation
- hypothetical deduction
- hypothetical proposition
- iac
- icon
- icon editor
- iconic interface
- IDE drive
- ideal boundary
- ideal code
- ideal constraint
- ideal element
- ideal plane
- ideal point
- ideal receiver
- idealized
- idem-factor
- idempotent matrix
- identical element
- identical figures
- identically vanishing
- identification
- identification card
- identification characters
- identification code
- identification division
- identification map
- identification number
- identification pulse
- identification topology
- identify
- identify gate
- identity element
- identity gate
- identity link
- identity number
- identity subgroup
- ideogram
- ideogram entry
- ideographic character
- idle conditions
- idle current
- idle insertion
- idle line