The Divača–Koper Railway (Slovene: Železniška proga Divača–Koper) is a Slovenian 50-kilometre long railway line that connects Ljubljana and Divača with the coastal town of Koper.

The line is used by the following passenger services^[when?]:

• Intercity: Maribor–Pragersko–Celje–Ljubljana–Borovnica–Postojna–Divača–Hrpelje-Kozina–Koper
• Intercity: Ljubljana–Borovnica–Postojna–Divača–Hrpelje-Kozina–Koper
• Regionalni vlak (Regional train): Ljubljana–Borovnica–Postojna–Divača–Rodik–Hrpelje-Kozina–Presnica–Koper
• Regionalni vlak (Regional train): (Sežana–) Divača–Rodik–Hrpelje-Kozina–Presnica–Črnotiče–Hrastovlje–Koper
• Regionalni vlak (Regional train): Divača–Rodik–Hrpelje-Kozina–Presnica–Podgorje–Zazid–Rakitovec

There are also many freight trains operating along this line to the port in Koper.

A new shorter track alignment between Koper and Divača with several tunnels reducing the length from 44 km (27 mi) to 27 km (17 mi) is under construction and slated to open in 2026.^[1]

• 
  Divača railway station in 2010
• 
  Rodik railway station in 2011
• 
  Hrpelje-Kozina railway station in 2011
• 
  Presnica railway station in 2011
• 
  Črnotiče railway station in 2011
• 
  Hrastovlje railway station in 2011
• 
  Rižana railway station in 2011
• 
  Koper railway station in 2010
• 
  Construction of second track in Črni Kal

• 2017 Slovenian railway referendum
• 2018 Slovenian railway referendum