Across the world, Rahayu (Rahayu 
) is a common mostly female, but seldom masculine first name. The forename Rahayu is habitual in Indonesia, where it is quite a common mostly feminine, but seldom boy's name, Brunei, where it is quite a rare feminine name, and Hong Kong. Measured by absolute frequency, it is the most numerous in Indonesia, Malaysia, and Taiwan. More frequently, Rahayu is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Rahayu | Malaysia, Hong Kong, Indonesia, Saudi Arabia, Taiwan |
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apriani rahayu badminton player, ID (b. 1998) |
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| lestari rahayu ID (b. 1955) |
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| rejeki andayani rahayu ID (b. 1957) |
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| suprihastuti sri rahayu ID (b. 1958) |
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| wahyuti limiany rahayu Indonesian politician (born 1970 in Sleman), ID (b. 1970) |
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| agus rahayu ID (b. 1962) |
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| wardani rahayu ID (b. 1964) |
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| tri rahayu ID (b. 1965) |
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| made saraswati rahayu ID (b. 1965) |
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| tri rahayu researcher |
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| driyanti rahayu researcher |
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| mulyati rahayu botanist |
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| wening patmi rahayu (b. 1973) |
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| lestari rahayu ID |
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| rahmawati rahayu ID |
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