The SLOB (Simple List Of Blocks) allocator is one of three available memory allocators in the Linux kernel. (The other two are SLAB and SLUB.) The SLOB allocator is designed to require little memory for the implementation and housekeeping, for use in small systems such as embedded systems. Unfortunately, a major limitation of the SLOB allocator is that it suffers greatly from internal fragmentation.

Slob or SLOB may refer to:

• Slob, United States Virgin Islands, a settlement
• Arie Slob (born 1961), Dutch politician
• Jan Janz Slop or Jan Slob (1643–1727), Dutch Golden Age painter
• SLOB, a memory allocation mechanism in Linux Kernel
• S.L.O.B. (Silver-Lipped Operator of Bullshit), debut full-length album by American deathcore band Dr. Acula
• "Slob", a song on the album Maladroit by Weezer