St Helens Beach is a coastal town and locality in the Mackay Region, Queensland, Australia.

St Helens was the name of a pastoral run founded by pastoralists R. W. Graham and brothers John and William Macartney in the 1870s.

[2] In the 2016 census, the locality of St Helens Beach had a population of 197 people.

[7] In the 2021 census, the locality of St Helens Beach had a population of 175 people.

The nearest government secondary school is Calen District State College (to Year 12).