Colonel Christopher Wyborne Armstrong (9 May 1899 – 8 July 1986) was a politician from Northern Ireland. He was Ulster Unionist Member of Parliament for Armagh from a by-election in 1954 until he stood down at the 1959 general election.

The son of Henry Bruce Armstrong, of Dean's Hill, Armagh, he married Hilde Kolz, with whom he had one son and daughter. Studying at Winchester College and Trinity College, Cambridge, he retired to farm at Gilgil, Kenya.

His son, Simon W J Armstrong, married a daughter and co-heir of Diana Miller, Countess of Mértola.

• Leigh Rayment's Historical List of MPs – Constituencies beginning with "A" (part 2)