SMS Irene was a protected cruiser or Kreuzerkorvette of the German Imperial Navy (Kaiserliche Marine) and the lead ship of the Irene class. She had one sister, Prinzess Wilhelm; the two ships were the first protected cruisers built by the German Navy. Irene was laid down in 1886 at the AG Vulcan shipyard in Stettin, launched in July 1887, and commissioned into the fleet in May 1888. The cruiser was named after Princess Irene of Hesse and by Rhine, sister-in-law of Kaiser Wilhem II. As built, the ship was armed with a main battery of fourteen guns and had a top speed of .