Patrick Welch (1948–2020) was a member of the Illinois Senate.
Patrick Welch may also refer to: Patrick Welch (died 1802), Irish MP for Thomastown and Gowran Patrick Welch (died 1816), Irish MP for Callan Patrick W. Welch (1965–2008), English artist
See also George Patrick Welch (1900–1973), historian and author Patrick Welsh (disambiguation) Welch (surname)