Pro-Ject Audio Systems is an Austrian hi-fi manufacturer founded by Heinz Lichtenegger in 1991, headquartered in Mistelbach, Lower Austria. The company originated when Lichtenegger discovered the Tesla NC-500 turntable from a shuttered Czech factory and reimagined it with improved materials and engineering, creating the original Pro-Ject 1. The company designs its products in Austria and manufactures them across facilities in the Czech Republic, Slovakia, and Germany. Pro-Ject operates as a division of Audio Tuning, which also owns Musical Fidelity.

Pro-Ject is widely recognized as one of the world's largest turntable manufacturers, with a product line spanning turntables, tonearms, cartridges, phono preamplifiers, amplifiers, DACs, streamers, and speakers. The Debut series — including the Debut Carbon EVO and Debut PRO — has become a benchmark for affordable audiophile turntables, while models like the RPM 3, X8 Evolution, and 6PerspeX serve more advanced listeners. The company's electronics range includes the Phono Box, DAC Box, Amp Box, and Pre Box component families.

Pro-Ject has released limited-edition Artist Collection turntables in collaboration with The Beatles, The Rolling Stones, Metallica, Parov Stelar, and the Vienna Philharmonic, among others. The company also partners with labels such as Universal Music Group and Third Man Records. Operating in over 80 countries through more than 5,000 dealers, Pro-Ject has earned numerous industry awards including EISA and Red Dot Design honors.

Pro-Ject has 47 products cataloged on Equipboard, including Turntables, Home Amplifiers, and Preamps. Their gear is featured by 1 artist, with the strongest followings in Electronic. Notable users include Four Tet. Most Pro-Ject products sit firmly in the high-end, boutique range.