剑玉（けん玉、Kendama），又称剑球、托球，过去在**曾叫日月球；是一种来自日本的传统民间游戏，游戏的起源仍然有争议，但最有可能起源于法国。

剑玉是日本人说的（けん玉），日文发音为「Kendama」（剑玉在西方也以此称呼），剑为十字木头的部份，玉为球体。

根据最早的文献记载，剑玉起源于约17～19世纪的法国，刚开始是用兽骨当剑身及球，后来慢慢演变成杯状，后期再从杯状演变为尖头，底部为皿，球也多了一个洞，当时在法国的贵族上流社会是一种非常流行的游戏，不管何时何地都有人在玩，在江户时代由留学生带回日本长崎，因此传入日本。

Kendama(けん玉, also written as 剣玉 and 拳玉) is a traditional Japanese toy. The ken has three cups and a spike which fits into the hole in the ball.

Kendama bears similarities to the classic cup-and-ball game, and the Hispanic world toy known as boliche or balero. The principle of these toys are the same: catching one object with another, where both are joined by a string. However the modern kendama style takes influences from a diverse range of skills including yo-yo, diabolo, juggling and dance.