WMDR (1340 AM) is an American radio station licensed to Augusta, Maine.

It is owned by Light of Life Ministries and carries religious children's programming.

The 1340 frequency was previously known as WFAU; in 1994, its call sign and nostalgia format moved to 1280 AM, while 1340 became religious station WMDR.

In 2009, the religious children's format was moved to an on demand section of their website and 1340 changed to a Christian-based talk radio station.

Sometime in early 2017, WMDR returned to airing a religious children's format, now branded as "The Arrow".