Western Sociologists

Step 1: Identify the sociologists.
\begin{itemize} \item Auguste Comte is known as the "Father of Sociology." \item MacIver was a well-known sociologist who contributed to social theory. \item G.S. Ghurye is regarded as the "Father of Indian Sociology." \end{itemize}

Step 2: Identify the non-sociologist.
Charles Darwin was a natural scientist and biologist, famous for his theory of evolution. He did not work directly in sociology.

Step 3: Conclusion.
Thus, Darwin is not a sociologist.

Final Answer: