印度-阿拉伯数字系统，或称印度数字系统，是一系列的十进制进位制的记数系统，起源于9世纪的印度。此系统像一种语系，当代的很多文本系统里的不同记数符号都是起源于此系统。

印度-阿拉伯数字起源于印度的婆罗米数字，在中世纪时传入中东和西方。各个地区根据当地的文本系统改造了其数字字符。现在还在使用的三大分支是：

The Hindu–Arabic numeral system or Hindu numeral system, a positional decimal numeral system, is the most common system for the symbolic representation of numbers in the world. It was invented between the 1st and 4th centuries by Indian mathematicians. The system was adopted by Persian mathematicians (Muḥammad ibn Mūsā al-Khwārizmī's c. 825 book On the Calculation with Hindu Numerals) and Arab mathematicians (Al-Kindi's c. 830 volumes On the Use of the Hindu Numerals) by the 9th century. It later spread to medieval Europe by the High Middle Ages.