A transfer arm for a fluid product includes a transfer pipe having sections linked by fluid-tight articulations and an end provided with a device for connecting the pipe to a target duct. A support structure for the pipe has an inner branch mounted on a base and an outer branch suspended from the inner branch by an articulation assembly. The articulation assembly enables rotation of the outer branch around vertical and horizontal axes and is positioned between first and second ends of the outer branch. The first end is provided with a counterweight for balancing parts of the outer branch that are situated on opposite sides of the horizontal rotational axis. The arm also has a disengageable device for actuating the rotations of the outer branch around the horizontal and vertical axes and a flexible link which suspends the pipe, upstream of the device, from the second end of the outer branch.