Rudolf Stelà ¡ovský, výroba automobilà ¯ was a Czech automobile manufacturer.
Originally established in 1899 by Rudolf Stelà ¡ovský and produced farm machineries. In 1922 Stelà ¡ovský started producing cars under the brand name, Stelka. It was designed by Jan à  vejda. In 1924, it was discontinued due to the lack of interest of customers and the unreliability of cars at the time.
Their only model was a four-seater powered by a four-stroke two-cylinder side-valve air-cooled engine with 90 mm bore and 90 mm stroke and a displacement of 1145cc. It had an output of around and a top speed of around . It had three forward and reverse speeds with the shifting lever constructed outside the bodywork and the engine power was transferred to the rear axle by a chain. The chassis weight only 300 kg. It was priced at 29,000 Kc which made it the cheapest vehicle showed at the 1923 Prague Motor Show.
At some point, a two-seater commercial pickup version of the Stelka car with a wooden loading area was also produced. It is unknown if this version was put in production or was a one-off.