Maʻafu or Ma'afu is a name commonly found in people from Oceania. It can be a masculine given name or a surname.

Notable people with this name include:

As a given name

• Enele Maʻafu (c. 1816 – 1881), a Tongan prince and Fijian chief
• Maʻafu Fia (born 1986), a Tongan rugby union football player
• Maʻafu Tukuiʻaulahi (1955 – 2021), a Tongan politician and nobleman
• Maʻafu-ʻo-limuloa (died 1799), a Tongan chief

As a surname

• Lorenzo Ma'afu (born 1987), a New Zealand rugby league football player
• Salesi Ma'afu (born 1983), an Australian rugby union football player
• Viliami Maʻafu (born 1982), a Tongan rugby union football player