Portnahinch or Portnehinch (Irish: Port na hInse[1] is a barony in County Laois (formerly called Queen's County or County Leix), Ireland.

[2][3][4] The barony is named after the townland of Portnahinch (Port na hInse; "port of the island").

[5][6] Portnahinch is located in the northeastern part of County Laois.

[7] Portnahinch formed part of the ancient Kingdom of Uí Failghe.

[8][9][10] Below is a list of settlements in Portnahinch barony: