Cognomen خلجی (Khalaji 
, Khalji 
, Halaci 
) , worldwide, is quite a rare surname. The last name خلجی is habitual in Pakistan, where it is quite a rare surname, Iran, where it is a rare surname, and Austria. Measured by absolute frequency, it is commonest in Southern Asia, particularly Pakistan, Iran, and India. Much less frequently, خلجی is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Khalaji | Iran, Austria, United States, India, Pakistan |
| Khalji | United Kingdom, Morocco, United States, India, Pakistan |
| Halaci | Turkey, India, Brazil, United States |
| خلجی | Iran |
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محمد بن بختیار خلجی Turkic military general of Qutb al-Din Aibak, AF (b. 1101) |
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جلالالدین فیروز خلجی 12th Sultan of the Delhi Sultanate and 1st from the Khalji dynasty, AF (b. 1220) |
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مهدی خلجی Iranian writer, IR (b. 1973) |
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| محمدتقی خلجی Iranian Shia cleric, IR (b. 1948) |
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| سهیلا خلجی Iranian journalist and faculty, IR (b. 1969) |
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| محمد راشد خلجی politician in Pakistan, PK (b. 1973) |
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| علیم شاہ خلجی CEO of The University Of Spoken English and Computer Science, PK |
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