恰帕斯州(西班牙语:Chiapas)是墨西哥的一个州，位于该国东南部。东临危地马拉，南临太平洋。州名源于纳瓦特尔语"chía" 和 "apan"意思是「恰河」。

整体属热带湿润气候。北部靠近塔巴斯科州的地区年均雨量高达3,000毫米。该区的原始植被为低地常绿雨林，但绝大部分已为农牧业所毁。往太平洋的方向雨量逐渐减少，但在塔帕楚拉附近仍然可能种植香蕉及其他热带作物。另一方面，在中部呈平行形态的山区，气候温和而多雾，因而形成了云林 (例如栖息了凤尾绿咬鹃（格查尔鸟）和角官鸟的 Reserva de la Biosfera el Triunfo。

Chiapas (Spanish pronunciation: [ˈtʃjapas]), officially Free and Sovereign State of Chiapas (Spanish:Estado Libre y Soberano de Chiapas), is one of the 31 states that, with the Federal District, make up the 32 federal entities of Mexico. It is divided into 122 municipalities and its capital city is Tuxtla Gutiérrez. Other important population centers in Chiapas include San Cristóbal de las Casas, Comitán, Tapachula and Arriaga. Located in Southwestern Mexico, it is the southernmost state, bordered by the states of Oaxaca to the west, Veracruz to the northwest and Tabasco to the north, and by the Petén, Quiché, Huehuetenango and San Marcos departments of Guatemala to the east and southeast. Chiapas has a coastline along the Pacific Ocean to the south.