Kaygusuz Abdal (1341-?) was a Turkish folk poet of the 14th century.
In the 14th century Alaiye was the capital of the small Alaiye beylik (principality). Kaygusuz Abdal was born in or near to Alaiye (modern Alanya, Antalya Province of Turkey). His name was Alaattin Gaybi and Kaygusuz Abdal was his pseudonym. According to tradition he was bey's son (i.e., prince). But instead of politics he chose to be a dervish. His tutor was Abdal Musa.
Details of his life and travels are ambiguous. Most of the stories attributed to him are not reliable. His works however convey that he travelled to many places. He travelled to Mecca (now in Saudi Arabia) for hajj (pilgrim). He was also visited Damascus (now in Syria), Najaf and Kerbela (now in Iraq). There are unreliable accounts of his visits to certains Balkan cities like Yambol, Plovdiv (now both in Bulgaria), Bitola (now in Republic of Macedonia) and Edirne (ancient Adrianapolis, now in Turkey). In Egypt he gained the title Abdullah Magaravi ("God's servant living in cave") after spending several years in seclusion 
His poetic works include;
- Mesnevi-i Baba Kaygusuz (3 Vol.),
His other works are
- Kitab-ı Mfglate,
- Vücûd nâme.