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What does SIO stand for?

SIO stands for Senior Intelligence Officer

This definition appears frequently and is found in the following Acronym Finder categories:

  • Military and Government

See other definitions of SIO

Other Resources:
We have 98 other meanings of SIO in our Acronym Attic

Samples in periodicals archive:

OIn my considered judgment as the nation's senior intelligence officer, sequestration jeopardizes our nation's safety and security.
On the morning of November 22, 1963, the day Kennedy was killed, Castro ordered a senior intelligence officer in Havana to stop listening for non-specific CIA radio communications and concentrate instead on "any little detail, any small detail from Texas", Latell claims in his new book 'Castro's Secrets - the CIA and Cuba's Intelligence Machine', set for release next month.
It will also seek to look after the interests of officers suspended for alleged violations against protesters and advise the government on security issues, said former senior intelligence officer Adel Flaifil.