Little Petra (Arabic: البتراء الصغيرة, al-batrā aṣ-ṣaġïra), also known as Siq al-Barid (Arabic: سيق البريد, literally "the cold canyon"), is an archaeological site located north of Petra and the town of Wadi Musa in the Ma'an Governorate of Jordan. Like Petra, it is a Nabataean site, with buildings carved into the walls of the sandstone canyons. As its name suggests, it is much smaller, consisting of three wider open areas connected by a 450-metre (1,480 ft) canyon. It is part of the Petra Archeological Park, though accessed separately, and included in Petra's inscription as a UNESCO World Heritage Site. It is often visited by tourists in conjunction with Petra itself, since it is free and usually less crowded.

Like Petra, it was probably built during the height of Nabataean influence during the 1st century C.E. While the purpose of some of the buildings is not clear, archaeologists believe that the whole complex was a suburb of Petra, the Nabatean capital, meant to house visiting traders on the Silk Road. After the decline of the Nabataeans, it fell vacant, used only by Bedouin nomads, for centuries. Along with neighboring Beidha, Little Petra was excavated in the later 20th century by Diana Kirkbride and Brian Byrd.

In 2010, a biclinium, or dining room, in one of the caves was discovered to have surviving interior art depicting grapes, vines and putti in great detail with a varied palette, probably in homage to the Greek god Dionysus and the consumption of wine. The 2,000-year-old ceiling frescoes in the Hellenistic style have since been restored. While they are not only the only known example of interior Nabataean figurative painting in situ, they are a very rare large-scale example of Hellenistic painting, considered superior even to similar later Roman paintings at Herculaneum.