Dolní Novosedly is a municipality and village in Písek District in the South Bohemian Region of the Czech Republic. It has about 300 inhabitants.

The villages of Chrastiny and Horní Novosedly are administrative parts of Dolní Novosedly.

Dolní Novosedly is located about 4 kilometres (2 mi) northeast of Písek and 43 km (27 mi) northwest of České Budějovice. It lies in the Tábor Uplands. The highest point is the hill Mláka at 548 m (1,798 ft) above sea level. The Podhorák pond is located in the municipality.

The first written mention of Dolní Novosedly is from 1517.

Historical population

Year Pop. ±% 1869 578 —     1880 607 +5.0% 1890 579 −4.6% 1900 631 +9.0% 1910 610 −3.3%	Year Pop. ±% 1921 603 −1.1% 1930 554 −8.1% 1950 391 −29.4% 1961 395 +1.0% 1970 327 −17.2%	Year Pop. ±% 1980 240 −26.6% 1991 205 −14.6% 2001 193 −5.9% 2011 210 +8.8% 2021 251 +19.5%
Source: Censuses

The I/29 road from Písek to Tábor passes through the municipality.

Dolní Novosedly is poor in monuments. In the centre of Dolní Novosedly is a chapel from the 19th century.

• Official website