Arnold Charles Ernest Hintjens (21 May 1949 – 23 April 2022), better known by his stage name Arno, was a Belgian singer. He was the frontman of TC Matic, one of the best-known Belgian bands of the 1980s.

After the band split in 1986 he enjoyed a solo career. Arno sang in a mixture of English, French, Dutch and his native Ostend-Flemish dialect. For TC Matic, a band which achieved moderate artistic success throughout Europe, he wrote or co-wrote all the band's material, much of it together with guitarist and producer Jean-Marie Aerts.