Scheme may refer to:
Scheme may also refer to some particular organizational plan or plot, including:

Scheme (programming language), a minimalist, multi-paradigm dialect of Lisp
Scheme (mathematics), an important concept in algebraic geometry
Color scheme, a set of colors chosen to be used together in some media
URI scheme, the outermost part of internet URIs
Numbering scheme, an agreed-upon method of assigning nominal numbers to entities
Rhyme scheme, the pattern of rhyming lines in poems and lyrics
Council House, in Scotland, a council housing estate
Get-rich-quick scheme, a usually flawed or fraudulent scheme for earning money with low risk
Pyramid scheme, a non-sustainable business model involving the exchange of money primarily for enrolling other people