Tondok (, also Romanized as Tandok; also known as Tondūk) is a village in Takab-e Kuhmish Rural District of the Central District of Sheshtamad County, Razavi Khorasan province, Iran.
At the 2006 National Census, its population was 1,469 in 431 households, when it was in the former Sheshtamad District of Sabzevar County. The following census in 2011 counted 1,469 people in 502 households. The latest census in 2016 showed a population of 1,434 people in 498 households; it was the largest village in its rural district.
In February 2019, the district was separated from the county to establish Sheshtamad County and divided into two districts, each with two rural districts. The city of Sheshtomad became the new county's capital. The village of Shamkan was later elevated to the status of a city and became the capital of Shamkan District.