Itarhi (Hindi: इटाढ़ी) is a Nagar Panchayat and corresponding community development block in Buxar district of Bihar, India.

[2] Itarhi is an entirely rural block, with no major urban centres.

The sex ratio was higher in the 0-6 age group, where it was 946 in Itarhi block compared to 934 in Buxar district overall.

[2] In 2011, most of Itarhi block's workforce was employed in agriculture, with 33.64% of workers being cultivators who owned or leased their own land and another 52.04% being agricultural labourers who worked someone else's land for wages.

[2] There are 167 villages in Itarhi block, 133 of which are inhabited and 34 of which are uninhabited.