Dunethin Rock, Heritage-listed park in Maroochy River, Queensland, Australia

Dunethin Rock is a prominent monolith on the southern bank of the upper Maroochy River at Maroochy River, Queensland. A scenic reserve of about 5 acres encircling the rock was gazetted in 1923, and the surrounding reserve connects the rock with Lake Dunethin, an inlet just north of it, along the river bank.

Dunethin Rock was gazetted as a five-acre scenic reserve in 1923 under Maroochy Shire Council control. The surrounding 1901 public-purpose reserve, created after residents petitioned for land above flood level, was renamed a camping and scenic reserve in 1924. A recreation and sports ground reserve followed in 1935, linking the rock to Lake Dunethin along the river bank.

The name Dunethin derives from an Aboriginal term meaning "place of swimming trees" (dhu, trees; yungathin, swim), recalling logs floated on the Maroochy River in the 1860s. Until 1970 the locality was often written Dunethim. James Low's timber depot opposite the rock opened a post office in 1868.

The reserve lies on Dunethin Rock Road at Maroochy River, with a river esplanade retained for water access. The rock and Lake Dunethin are linked by the river bank, so you can walk between them. The former school and School of Arts stood northwest of the rock, opposite the lake's southern bank.

The name Dunethin derives from an Aboriginal term meaning "place of swimming trees", referring to timber floated down the Maroochy River. Until 1970 the locality was commonly written as Dunethim before Dunethin became official.