- .45
- ABS Armour
- AK-47
- ALA
- ALA Assault on Carthage
- ALA death squad assassins
- ARES FMG
- AU300 Heavy Barrel
- AU 300 Mod SMG
- A Man Without Power
- Addison Hargrove
- Aeroscience Integrated Technologies
- Agency Assault on PHARCOM Warehouses
- Agency Bio-Lab
- Agency Bio-Lab Escape
- Agram 2000
- Ahmed Salim Fadhil
- Air Taser
- Al-Jamil
- Alec Kabanov
- Alex Birchim
- Alima Haddad
- Aljir Prison
- Aljir Prison Break-In
- Aljir Prison Escape
- Anatoly Yuschenko
- Andre Proust
- Anti-static armour
- Anton Girdeux
- Arleigh Burke-class destroyer
- Armour glitch
- Asian Airways flight 313
- Askar Saydahmat
- Assassination of Commander Silvers
- Assassination of Dimitri
- Assassination of IPCA
- Assassination of Mara Aramov and Elsa Weissenger
- Assassination of Qwan Tak
- Assassination of Shi Hao
- Assault on Murukawa Industries
- Assault on the St. Helens
- Attack in Yemen
- Attempted Apprehension of Mara Aramov
- Australia
- Australian Outback
- Awards in Syphon Filter series
- Aztec Ruins
- BIZ-2
- Bag Lady
- Base Bunker
- Base Escape
- Base Tower
- Behind The Scenes
- Beta Weapons (Syphon Filter: The Omega Strain)
- Binoculars
- Birds of a Feather
- Black Baton
- Black King
- Black Viper
- Blake Hargrove
- Blood Money
- Budva, Montenegro: Niculescu's Villa Estate
- C-130 Hercules
- C-130 Wreck Site
- C-4 Explosive
- C5 Galaxy Transport
- C8 rifle
- CBDC
- CDP
- Calico M-950
- Calico M-960AS
- Card Key
- Carter
- Carthage, Michigan: Carthage Mall
- Carthage, Michigan: Quarantine Zone
- Carthage, Michigan: Warehouse District
- Carthage Health Authority
- Cassia
- Cast members in Syphon Filter
- China type 56
- Chinese Secret Service
- Civilian
- Close Assault Weapon System
- Club 32
- Cobra
- Colorado Bridge Bombing Commander
- Colorado Interstate 70 (location)
- Colorado Interstate 70 (mission)
- Colorado Mountains
- Colorado Train Race
- Colorado Train Ride
- Combat Knife
- Combat shotgun
- Congratulations! Party Time!
- Convoy
- Costa Rican Incident
- Costa Rican Plantation
- Crossbow
- Cyanide
- DC Subway
- DSC-1 Thermal
- Damn it!
- Dane Bishop
- Davies
- DeMarco
- Dead Currents
- Deadly Cargo
- Debbie Oakton
- Depths of Darkness
- Derek Falkan
- Desert Express .50
- Desert Flames
- Destroyed Subway
- Destruction of Hadithah Oil Field
- Destruction of Rhoemer's Base
- Dillon Morgan
- Dimitri Alexopolous
- Discrete Personnel Elimination
- Disintegration
- Dobson
- Docks Final Assault
- Dosbol Samaev
- Drowning
- Drowning (Dark Mirror)
- Drowning (Logan's Shadow)
- Dusty Oakton
- Earl Oakton
- Edward Benton
- Ehud Ben Zohar
- Ellis
- Elsa Weissinger
- Engineer
- Erich Rhoemer
- Escape from Gebel Tyorma
- Escape from McKenzie Air Force Base
- Escape from New York City
- Eschelman
- Event Horizon
- Evil Scientist
- Expo Center Dinorama
- Expo Center Reception
- F-22 Raptor
- FAMAS
- Faceoff with Jimmy Zhou
- Faceoff with al-Jamil
- Fahid Tamer
- Fatha al-Hassan
- Ferguson
- Final Zeus
- Finale
- Finding Freeman
- First Destruction of the SS Lorelei
- First Investigation of PHARCOM
- Fist Full of Rubles
- Flak Jacket
- Flaming Enemy
- Flashlight
- Floyd
- Forged Under Fire
- Found Enemies
- Foundation to Inhibit State Treason
- Freedom Memorial
- Freeman's Answer
- Freeman's Files
- G-18
- G33E
- Gabriel Logan
- Gary Stoneman
- Genocide on Ivankov's Home
- Georgia Street
- Georgia Street Terrorists
- Gershon
- Ghassan Al-Bitar
- Gina Hunter
- Girdeux's Terrorists
- Glock 17
- Going Under
- Goodnight Sweetheart
- Goran Zivmović
- Gregorov (mission)
- Grenade
- HK-5
- Han Yen
- Hand Taser
- Heckler & Koch G11
- Heng Su
- Hidden Evidence (Episode 2 Part 1)
- Hidden Evidence (Episode 2 Part 2)
- Hidden Evidence (Episode 2 Part 3)
- Hidden Evidence (Episode 2 Part 4)
- Hidden Evidence (Episode 3 Part 1)
- Hidden Evidence (Episode 3 Part 2)
- Hidden Evidence (Episode 3 Part 3)
- Hidden Evidence (Episode 4 Part 1)
- Hidden Evidence (Episode 4 Part 2)
- Hidden Evidence (Episode 4 Part 3)
- Hidden Evidence (Episode 5 Part 1)
- Hidden Evidence (Event Horizon)
- Hidden Evidence (Finding Freeman)
- Hidden Evidence (Fist Full of Rubles)
- Hidden Evidence (Forged Under Fire)
- Hidden Evidence (Freeman's Answer)
- Hidden Evidence (Freeman's Files)
- Hidden Evidence (Good Night Sweetheart)
- Hidden Evidence (Insertion Point Alpha)
- Hidden Evidence (Into the Abyss)
- Hidden Evidence (Jimmy Zhou's Army)
- Hidden Evidence (Kreisler's Garden)
- Hidden Evidence (Lian's First Time)
- Hidden Evidence (Meeting with Fate)
- Hidden Evidence (Memories)
- Hidden Evidence (Old Friends)
- Hidden Evidence (Red Jack)
- Hidden Evidence (Red Section)
- Hidden Evidence (Security Section D)
- Hidden Evidence (The Ultimate Sacrifice)
- Hidden Evidence (Traitor in Our Midst)
- Hidden Evidence (Under NORAD's Nose)
- Home/Games
- Home/Main Characters
- Home/Organizations
- Home/Syphon Filter 1 Characters
- Home/Syphon Filter 3 Characters
- Home/Terrorists
- Home/Weaponry
- Hotel Fukushima (mission)
- How To Help
- I-70 Mountain Bridge
- IPCA
- IPCA European Command: Training Centre
- Imani Gray
- Imposter Gregorov
- Insertion Point Alpha
- Intel Database
- Into The Cold
- Into the Abyss
- Investigation into Yavlinsky
- Investigation of Erich Rhoemer
- Investigation of KemSynth Botanics
- Investigation of Pugari Complex
- Investigation of Yavlinsky
- Invincibility glitch
- Iwao Ryusaki
- Jack Miller
- Jandran's assistant
- Jane Doe
- Japan
- Jason Chance
- Jean Fournier
- Jenkins
- Jim Russell
- Jimmy Zhou
- Jimmy Zhou's Army
- John Ramirez
- Jonathan Phagan
- Jorge Marcos
- Jump glitch
- K-BAR
- K3G4 Assault Rifle
- Kabul, Afghanistan
- Kazakhstan Missile Incident
- Kazakhstan Warehouses
- Kelly
- KemSynth Tower
- Kiev, Ukraine: Chechen Terrorist Base
- Killing Time
- Korin Matsua
- Kowalski
- Kreisler's Garden
- Laser mines
- Lawrence Mujari
- Leading The Blind
- Left Behind
- Lian's First Time
- Lian Xing
- List of Syphon Filter references to other media sources
- Logan's Shadow theme song
- Lyle Stevens
- M-16
- M-79
- M134 minigun
- M16K
- M1 Super 90
- M82 BFG
- MARK 23 SD
- MB-150
- Maggie Powers
- Magic Box Glitch
- Main Subway Line
- Malak
- Malcolm Freeman
- Mara Aramov
- Matter's End
- Mazyr, Belarus: Belaya Vezha
- Mazyr, Belarus: Krivorozhstal Mill
- McKenzie Airbase
- McKenzie Airbase Exterior
- McKenzie Airbase Interior
- Meeting with Fate
- Meeting with Uri Gregorav imposter
- Memories
- Mihai Niculescu
- Mikhail Pulikovsky
- Mikhas Ivankov
- Military Police
- Militia Compound
- Minsk, Belarus: International University
- Missile Silo
- Missing Friends
- Mongolia
- Morgan
- Morgan (mission)
- Moscow Club 32
- Moscow Streets
- Mr. Cochrane
- Multiplayer
- Multiplayer unlockables
- Neck snap
- Nepal
- Nerve Gas Grenade
- New York Garage
- New York Sewer
- New York Slums
- New York Slums (multiplayer)
- Nigel Cummings
- Nightvision Goggles
- Nightvision rifle
- Nikolai Jandran
- Ninja Gabe
- Nitroglycerin
- North Atlantic: Lorelei Salvage Rig
- Nowhere To Run
- Ocean's Five
- Old Friends
- Oleg Petrenko
- Omega Strain
- Operation Canyon Storm
- Our Hidden Past
- Over Under
- PHARCOM Warehouses
- PK-102
- PPK
- Par time
- Paradise Ridge
- Paradise Ridge Incident
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