A water spouting device enabling air bubble entrained water to be discharged, the water spouting device comprising: a main body portion with a discharge port formed therein and from which water is discharged, an inflow port formed therein and into which the water to be discharged from the discharge port flows from a water supply source, and an internal channel formed therein and extending from the inflow port to the discharge port; an orifice portion configured to inject the inflow water from the inflow port toward a downstream side of the internal channel; an air bubble entraining portion with an opening portion formed therein and through which air is introduced into the internal channel, the air bubble entrainiing portion being configured to generate a negative pressure by means of water injected from the orifice portion to draw in air through the opening portion under an effect of the negative pressure, the air bubble entraining portion entraining the air introduced from the opening portion into the water injected from the orifice portion to generate air bubble entrained water and supplying the air bubble entrained water to the discharge port; and an entrainment rate adjusting portion configured to adjust an entrainment rate of the air bubbles entrained in the air bubble entrained water in the air bubble entraining portion, characterized in that the entrainment rate adjusting portion (305, 321b, 311c, 315a) is configured to move or deform by the force of the inflow water from the inflow port, the entrainment rate adjusting portion is adapted to increase the entrainment rate until the inflow water from the inflow port reaches a predetermined flow rate, and to suppress an increase in entrainment rate when the inflow water from the inflow port exceeds the predetermined flow rate by moving or deforming. a main body portion with a discharge port formed therein and from which water is discharged, an inflow port formed therein and into which the water to be discharged from the discharge port flows from a water supply source, and an internal channel formed therein and extending from the inflow port to the discharge port; an orifice portion configured to inject the inflow water from the inflow port toward a downstream side of the internal channel; an air bubble entraining portion with an opening portion formed therein and through which air is introduced into the internal channel, the air bubble entrainiing portion being configured to generate a negative pressure by means of water injected from the orifice portion to draw in air through the opening portion under an effect of the negative pressure, the air bubble entraining portion entraining the air introduced from the opening portion into the water injected from the orifice portion to generate air bubble entrained water and supplying the air bubble entrained water to the discharge port; and an entrainment rate adjusting portion configured to adjust an entrainment rate of the air bubbles entrained in the air bubble entrained water in the air bubble entraining portion, characterized in that the entrainment rate adjusting portion (305, 321b, 311c, 315a) is configured to move or deform by the force of the inflow water from the inflow port, the entrainment rate adjusting portion is adapted to increase the entrainment rate until the inflow water from the inflow port reaches a predetermined flow rate, and to suppress an increase in entrainment rate when the inflow water from the inflow port exceeds the predetermined flow rate by moving or deforming.