A two-axis hinge device includes a first-rotation-axis defining unit which defines a first rotation axis; a rotating arm fixed to a first housing, the rotating arm being provided on the first-rotation-axis defining unit such that the rotating arm is rotatable around the first rotation axis; a second-rotation-axis defining unit fixed to a second housing, the second-rotation-axis defining unit having a substantially cylindrical shape and defining a second rotation axis which is substantially perpendicular to the first rotation axis, the first-rotation-axis defining unit being fixed to and supported by the second-rotation-axis defining unit; and a hole-communicating connector fixed to the second-rotation-axis defining unit, the hole-communicating connector having a substantially cylindrical shape and being provided with a hole which communicates with a hole in the second-rotation-axis defining unit.