Nebory

(Polish: , German: Oldrzichowitz) is a village in Frýdek-Místek District, Moravian-Silesian Region, Czech Republic. It was a separate municipality but became administratively a part of Třinec in 1980. It has a population of 3,182 (1 January 2008). and lies in the historical region of Cieszyn Silesia. Tyrka flows through the village. The name of the village is of patronymic origins derived from personal name Oldrzych, from German name Ulrich.

(Polish: , German: Roppitz) is a municipality and village in Frýdek-Místek District in the Moravian-Silesian Region of the Czech Republic. It has about 1,700 inhabitants. The municipality has a significant Polish minority.

The Tyra (also called Tyrka) is a stream in the Czech Republic, a left tributary of the Olza River. It flows through Třinec in the Moravian-Silesian Region. It is 13.2 km (8.2 mi) long.

Třinec Iron and Steel Works (TŽ) (Czech: Třinecké železárny, Polish: Huta trzyniecka) is a producer of long rolled steel products in Třinec, Moravian-Silesian Region, Czech Republic. TŽ produces over a third of all steel produced in the Czech Republic (roughly 2.5 million tons annually). Since its establishment, Třinecké železárny's plants have produced more than 150 million tons of crude steel. Moravia Steel is the major shareholder of TŽ, the biggest Czech steel company controlled by domestic capital.

Werk Arena is an indoor sporting arena located in Třinec, Czech Republic. The capacity of the arena is 5,400 people.

Smilovice (Polish: , German: Smilowitz) is a municipality and village in Frýdek-Místek District in the Moravian-Silesian Region of the Czech Republic. It has about 800 inhabitants. Former Prime Minister of Poland and former president of the European Parliament Jerzy Buzek was born here. The municipality has a significant Polish minority.

Stadion Rudolfa Labaje is a football stadium in Třinec in the Czech Republic. It is the home ground of football side FK Třinec. The stadium is named after Rudolf Łabaj, a local Polish footballer who played for the club. It is one of the smallest stadiums in the Czech 2. Liga with a capacity of about 2,200.

Sport Hall STARS Třinec is a sports hall in Třinec, Czech Republic. The hall has a capacity of 900 spectators. The floorball club FBC Třinec uses it for its home matches, and other clubs in the vicinity from the 2023–24 season. It was used for home matches by the futsal club SKP Ocel Třinec, which, however, ceased its activities during the COVID-19 pandemic. Many various company events and balls are also held here.

Staré Město (Polish: Stare Miasto, "Old Town") is administratively a part of the town of Třinec in Frýdek-Místek District, Moravian-Silesian Region, Czech Republic. It is the historical centre of the town. It lies in the historical region of Cieszyn Silesia and has a population of 5,713 (1 January 2008).Staré Město is a place where the main urban settlement grew alongside Třinec Iron and Steel Works from the 19th century up to World War II. In 1946 merged with the town was the village of Lyžbice where in the 1950s the ruling Communist Party of Czechoslovakia began a large scale development in the style of socialist realism. Afterwards Lyžbice became a new downtown, overtaking the role from Staré Město (lit. Old Town).

(Polish: ) is a village in Frýdek-Místek District, Moravian-Silesian Region, Czech Republic. It was a separate municipality but became administratively a part of Třinec in 1980. Tyrka flows through the village. It has a population of 445 (1 January 2008) and lies in the historical region of Cieszyn Silesia. The name of the village is of topographic origins derived from an older name of the local river Tyrka (also known as Tyra).

(Polish: ) is a municipality and village in Frýdek-Místek District in the Moravian-Silesian Region of the Czech Republic. It has about 600 inhabitants. The municipality has a significant Polish minority.

Vělopolí (Polish: ) is a municipality and village in Frýdek-Místek District in the Moravian-Silesian Region of the Czech Republic. It has about 300 inhabitants. The municipality has a significant Polish minority.