This paper proposes the following three constraints which restrict the consonantal distribution in Turkish mimetic words: (i) Coronal constraint (domain: base): alveolars must not precede palatals; (ii) Agree-[voice]/obs (domain: base): if C1 and C2 are obstruents, their feature [voice] must agree; (iii) *D]σ: voiced obstruents with the feature [-continuant] must not appear in coda positions. Furthermore, the paper indicates the following two things: (i) Coronal constraint and *D]σ relate to the markedness of consonants, and Agree-[voice]/obs relates to the assimilation of consonants; (ii) there are phonological similarities and differences between Turkish mimetic and non-mimetic words in terms of whether or not the constraints above hold.