Laki (meaning "meadows") may refer to the following places in Poland:

• Laki, Lower Silesian Voivodeship (south-west Poland)
• Laki, West Pomeranian Voivodeship (north-west Poland)
• Laki, Lublin Voivodeship (east Poland)
• Laki, Garwolin County in Masovian Voivodeship (east-central Poland)
• Laki, Warsaw West County in Masovian Voivodeship (east-central Poland)
• Laki, Wolomin County in Masovian Voivodeship (east-central Poland)
• Louky nad Olší (Laki nad Olza), village in the Czech Republic

Laki or Lakagígar (Craters of Laki) is a volcanic fissure in the south of Iceland, not far from the canyon of Eldgjá and the small village of Kirkjubæjarklaustur. Lakagígar is the correct name, as Laki mountain itself did not erupt, as fissures opened up on each side of it. Lakagígar is part of a volcanic system centered on the Grímsvötn volcano and including the  Þórðarhyrna volcano. It lies between the glaciers of Mýrdalsjökull and Vatnajökull, in an area of fissures that run in a southwest to northeast direction.