Dolní Domaslavice (Polish: Domasłowice Dolne, German: Nieder Domaslowitz) is a municipality and village in Frýdek-Místek District in the Moravian-Silesian Region of the Czech Republic.

The first written mention of Dolní Domaslavice is in a Latin document of Diocese of Wrocław called Liber fundationis episcopatus Vratislaviensis from around 1305 as item in Domaslawitz utroque.

Politically, Dolní Domaslavice belonged initially to the Duchy of Teschen, from 1327 a fee of the Kingdom of Bohemia.

According to the censuses conducted in 1880–1910 the population of the municipality grew from 955 in 1880 to 1061 in 1910 with a majority being native Czech-speakers (between 88.3% and 92.4%) accompanied by a small Polish-speaking minority (between 3.2% and 10.6%) and German-speaking people (at most 41 or 4.4% in 1880).

Following the Munich Agreement, in October 1938 together with the Trans-Olza region it was annexed by Poland, administratively adjoined to Cieszyn County of Silesian Voivodeship.