John MacIsaac

John MacIsaac may refer to:

• John A. MacIsaac (1883–1942), member of the Nova Scotia House of Assembly
• John L. MacIsaac (1870–1941), member of the Nova Scotia House of Assembly
• John MacIsaac (athlete), see 1958 European Athletics Championships – Men's 4 × 400 metres relay

{{hndis|MacIsaac, John}}