科尼亚克期(Coniacian)是晚白垩纪的第三个时期，时间为 89.3 ± 1 百万年前至 85.8 ± 0.7 百万年前。

以法国城市科尼亚克（Cognac）命名。

The Coniacian is an age or stage in the geologic timescale. It is a subdivision of the Late Cretaceous epoch or Upper Cretaceous series and spans the time between 89.8 ± 1 Ma and 86.3 ± 0.7 Ma (million years ago). The Coniacian is preceded by the Turonian and followed by the Santonian.