Sean Mackin

Sean/Seán Mackin may refer to:

Seán Mackin (Irish republican), Northern Irish activist, fundraiser for the Friends of Sinn Féin
Sean Mackin (musician) (born 1979), American musician for the pop punk band Yellowcard
Sean Mackin (Skulduggery Pleasant), a fictional character from the Derek Landy novel Skulduggery Pleasant: Kingdom of the Wicked