Frank McGlynn Jr. (Marin County, Califòrnia, 9 de juliol de 1904 - Los Angeles, Califòrnia, 29 de març de 1939) va ser un actor nord-americà. Era fill de Frank McGlynn Sr.

Date of Death: 29 Mar 1939, Los Angeles, California (tuberculosis)

The younger McGlynn's stage and movie work began circa 1924 when he was twenty years of age. His busiest western period was 1935 when he appeared in a pair of Hopalong Cassidy adventures as well as a pair with John Wayne. He was known for Hop-a-Long Cassidy (1935), Bar 20 Rides Again (1935), Lawless Range (1935), Westward Ho (1935) and The Dandy and the Belle (1931).