Daniel Mulcahy (7 January 1882 – 13 July 1953) was an Australian politician.

Born in Milltown, Ireland, he was educated at Irish Catholic schools and migrated to Australia as a youth.

In 1934, he was elected to the Australian House of Representatives as the member for Lang, representing the Langite Australian Labor Party (NSW).

When this second split was resolved, Mulcahy again joined the federal ALP.

This article about an Australian Labor Party member of the House of Representatives is a stub.