Staff sergeant

Staff sergeant is a military rank, a traditional infantry or army enlisted grade held by a non-commissioned officer. In the UFP, this rank is equivalent to a petty officer (1st or 2nd class, depending on service).

		Enlisted ranks					Etc	Officer ranks						Flag ranks
MACO		PV1 PV2 PFC	CPL SGT	SSG SFC	MSG	SGM CSM	WO	2LT	1LT	CPT	MAJ	LTC	COL	BG	MG	LTG	GEN	MSHL
Kellarian System Defense Force (Navy & Ground forces) (Star Trek: Remington)		CR CN	PO2 PO1	CPO	SCPO	MCPO		ENS	SLT	LT	SCDR	CDR	CAPT	CDRE	VADM		ADM	FADM
		PVT PFC	CPL SGT	SSG	MSG	SGM		3LT	2LT	1LT	MAJ	LTCOL	COL	MGEN	LGEN		GEN	CGEN
Federation Marine Corps		Pvt PFC	LCpl Cpl	Sgt SSgt GySgt	MSgt 1st Sgt	MGySgt SgtMaj SMOMC	WO Cdt	2nd Lt	1st Lt	Capt	Maj	LtCol	Col BCol	BGen	MajGen	LtGen	Gen	GCorps
Federation Starfighter Corps (Star Trek: Remington)		AB Amn A1C SrA	SSgt TSgt	MSgt	SMSgt	CMSgt CCM CMSSC	WO ACT	2ndLt	1stLt	Capt	Maj	LtCol	Col FCol	BrigGen	MajGen	LtGen	Gen	GSC
UESPA		REC PVT PFC	CPL SGT	SSG SFC	MSG	SGM SMU		2LT	1LT	CPT	MAJ	LTC	COL	BG	MG	LTG	GEN	MSHL

External link

Staff sergeant article at Memory Alpha, the canon Star Trek wiki.