Cleobulus of Lindos was a Greek sage from the 6th century BCE, traditionally counted among the Seven Sages of Greece. He was from the city of Lindos on the island of Rhodes and is said to have ruled there as a tyrant. Ancient accounts describe him as strong, handsome, and knowledgeable, with a legendary connection to Egyptian philosophy. He had a daughter, Cleobuline, who was also known for composing riddles.

Like the other Sages, Cleobulus was known for practical wisdom rather than lengthy philosophical works. No complete writings by him survive. His legacy consists of short, ethical maxims attributed to him, such as "Moderation is best" and "Avoid excess." Some sources credit him with songs and riddles, but these attributions are considered uncertain or legendary.

His significance lies in his role as a cultural symbol. According to modern scholars, the Seven Sages represent an early archetype of Greek practical wisdom, focusing on ethical conduct and self-control. Cleobulus is important not for a specific doctrine, but as part of this group that shaped ideals of leadership and personal virtue in the archaic Greek world.