Keenagh Beg, known locally as Keenaghbeg (Irish: Caonach Beag, genitive: Chaonach Beag , meaning "the place of moss", Beag meaning "big") is a townland in County Mayo , Ireland .   The townland is in the electoral division of Derry , in Civil Parish of Crossmolina , in the Barony of Tirawley .   Archival records of the place name date back to 1661.  
There is folklore relating to Keenagh Beg in The Schools’ Collection (1937-1939).  Keenagh beg has a bog and a waterfall .    There is a Roman Catholic Church in the towland called "Holy Souls" or Keenagh Church.   The Palmer family own a sporting lodge in the townland called Keenagh Lodge.  The nearest hotels are in Crossmolina.  Keenagh National School in the townland taught a total of 13 pupils in 2017 - 2018.