Herman Henry Dignan (November 6, 1890 – 1956) was an American politician who served as the 35th Secretary of State of Michigan from 1943 to 1946 as a member of the Republican Party.

On November 6, 1934, Dignan was elected as a member of the Michigan House of Representatives from the Shiawassee County district.

On November 8, 1939, he was elected as a member of the Michigan Senate from the 15th district.

[1][2] Dignan married Nell T. "Nelly" Haley in 1913 in Flint, Michigan.

[2] Dignan died in 1956 and was interred at Oak Hill Cemetery in Owosso, Michigan.