Erni Krusten (April 30, 1900–June 16, 1984) was an Estonian writer.
He was born Ernst Krustein in Muraste, Harku Parish, in a gardening family, and worked as a gardener himself.
In 1920 he began to pursue writing and his first book was published in 1927.
He wrote prolifically, and often favored writing short works in prose.
He died 1984 in Tallinn.