ðə wˈɪlkʌt vˈɛɹiənts: wˈɪɪlkˌɪt, ˈeɪtʃwˈɪlkˈʌt, hˈɔɪlkʌt, hˈɔɪlkʌthˈɔɪ ˈɔːlsoʊ nˈoʊn æz "ˌʌpɚ ɹˈɛdwʊd kɹˈiːk ˈɪndiənz" ɔːɹ "mˈæd ɹˈɪvɚɹ ˈɪndiənz" wɜːɹ ɐ pɐsˈɪfɪk kˈoʊst ˈæθɐbˌæskən tɹˈaɪb spˈiːkɪŋ ɐ dˈaɪəlɛkt sˈɪmɪlɚ tə ðə hjˈuːpə tə ðə nˈɔːɹθiːst ænd tʃˈɪljʊlə tə ðə nˈɔːɹθ, hˌuː ɪnhˈæbɪɾᵻd ðɪ ˈɛɹiə ˌɔn ɔːɹ nˌɪɹ ðɪ ˌʌpɚ ɹˈɛdwʊd kɹˈiːk ænd ɐlˈɔŋ ðə mˈæd ɹˈɪvɚɹ ɛksˈɛpt nˌɪɹ ɪts mˈaʊθ wɪððə nˈɔːɹθ fˈɔːɹk mˈæd ɹˈɪvɚ, ˌʌp tʊ ˈaɪækwə bˈʌt, ænd sˌʌm sˈɛɾəlmənt ɪn ɡɹˈaʊs kɹˈiːk ɪnðə tɹˈɪnᵻɾi ɹˈɪvɚ dɹˈeɪnɪdʒ ɪn nɔːɹθwˈɛstɚn kˌælɪfˈoːɹniə, bᵻfˌoːɹ kˈɑːntækt wɪð jˌʊɹɹəpˈiənz.
The Whilkut (variants: Whiylqit, Hwil'-kut, Hoilkut, Hoilkut-hoi) also known as "(Upper) Redwood Creek Indians" or "Mad River Indians" were a Pacific Coast Athabaskan tribe speaking a dialect similar to the Hupa to the northeast and Chilula to the north, who inhabited the area on or near the Upper Redwood Creek and along the Mad River except near its mouth (with the North Fork Mad River), up to Iaqua Butte, and some settlement in Grouse Creek in the Trinity River drainage in Northwestern California, before contact with Europeans.