National Security Service could refer to:

• National Security Service (Armenia)
• National Security Service (Kazakhstan)
• National Security Service (Maldives)
• National Security Service (Somalia)
• National Security Service (Turkey)
• National Security Service (United States)
• National Security Service (Uzbekistan)

See also

• National Security (disambiguation)
• National Security Agency (disambiguation)
• National Security Bureau (disambiguation)
• National Security Council (disambiguation)

This disambiguation page lists articles associated with the title National Security Service.
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