This paper focuses on tonal alternations in the Urhobo noun phrase. Urhobo is an Edoid language spoken extensively in Delta State, Nigeria. The language has two basic tones, high and low, plus a phenomenon of downstep, both automatic and non-automatic. The noun phrases examined include the noun + noun associative construction, the noun + relative clause construction, and noun reduplication, which is used to express the equivalent of the English noun phrases that signal "every + noun" and "only/so many/so much + noun." This paper is a purely descriptive study intended to present facts that would lead in the long run to a better understanding of tonal alternations in Edoid languages. Theoretical analysis would be done only when necessary. (Author/SM)