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, a fictional character from the Derek Landy novel Skulduggery Pleasant: Kingdom of the Wicked