Euro was one of eight s built for the (Royal Italian Navy) during the 1920s. She was named after Euro, weak winter easterly wind bringing rain and storms to the Mediterranean.
The Turbine-class destroyers were enlarged and improved versions of the preceding . They had an overall length of , a beam of and a mean draft of . They displaced at standard load, and at deep load. Their complement was 12 officers and 167 enlisted men.
The Turbines were powered by two Parsons geared steam turbines, each driving one propeller shaft using steam supplied by three Thornycroft boilers. The turbines were rated at for a speed of in service, although Euro reached a speed of during her sea trials while lightly loaded. They carried enough fuel oil to give them a range of at a speed of .
Their main battery consisted of four guns in two twin-gun turrets, one each fore and aft of the superstructure. Anti-aircraft (AA) defense for the Turbine-class ships was provided by a pair of AA guns in single mounts amidships and a twin-gun mount for machine guns. They were equipped with six torpedo tubes in two triple mounts amidships. The Turbines could carry 52 mines.
Euro was laid down by Cantieri Navali del Tirreno at their Riva Trigoso shipyard on 24 January 1925, launched on 7 July 1927 and completed on 22 December.