There are multiple artists with this name:
1. A German composer
2. A British pop singer

1. Engelbert Humperdinck (German pronunciation: [ˈɛŋl̩bɛʁt ˈhʊmpɐdɪŋk]) (1 September 1854 – 27 September 1921) was a German composer, best known for his opera, Hänsel und Gretel. Humperdinck was born at Siegburg in the Rhine Province; at the age of 67 he died in Neustrelitz, Mecklenburg-Western Pomerania.

2. Engelbert Humperdinck (born Arnold George Dorsey; 2 May 1936) is a British pop singer