Catherine "Cathy" Shaw (née Pidzarko; born c. 1953) is a Canadian curler, originally from Winnipeg, Manitoba.

The team represented the Northwest Territories/Yukon at the 1980 Canadian Ladies Curling Association Championship, finishing with a 5–6 record.

The team represented Alberta at the 1982 Scott Tournament of Hearts, where they finished the round robin in a five-way tie at 7–3.

The team won the Alberta championship again in 1983, and would represent the province at the 1983 Scott Tournament of Hearts.

They then beat the Northwest Territories/Yukon team skipped by Shelly Bildfell in the semi-final before losing to Nova Scotia.