Robert W. Hill (20 September 1828 – 16 July 1909) was an American architect from Waterbury, Connecticut.

He obtained a position in the office of Henry Austin, during which he also taught at the YMI.

[2] He then worked in Milwaukee, Wisconsin for Albert C. Nash, a former Connecticut architect.

In 1863 he relocated to Waterbury, where he would quickly become the city's most prominent architect, a position he retained for the rest of his career.

[1] Hill trained several other Waterbury architects, including Joseph A. Jackson, Wilfred E. Griggs and Theodore B.