- Hidden throughout the world are tag locations. Put up the Saints tag to earn respect.
- — Tagging introduction
There are gang tags around the city which can be sprayed over with the 3rd Street Saints tag. There are 75 Tagging locations in Saints Row, and 50 locations in Saints Row 2.
In both games, Tagging is started by standing in front of the Gang tag, and pressing the Action button when prompted.
In Saints Row 2, tagging locations are marked with a standard blue marker and a larger 2D Spray Can logo. An outline of the Gang Customization tag is displayed, and must be covered with paint with a "Press X to complete tag" prompt when it is sufficiently covered. The can must be periodically shaken, using the look control.
If the Neighborhood the tag is in belongs to a rival gang, gang Notoriety slowly builds up while spraying it. If the Neighborhood doesn't belong to any gang, police Notoriety slowly builds up.
There are 20 Tagging combinations in Saints Row. All combinations are defined as having 8 actions, but the actual number of required actions varies depending on how many tags have been completed.
The first 13 tags have 3 actions.
- Respect is earned for each Tag sprayed.
- Tagging is worth 5% Completion, so each tag is worth 1/15% each in Saints Row, and 1/10% each in Saints Row 2.
- Saints Row: "10 Getting Up" Achievement for completing all 75 tags.
- Saints Row 2: "All-City" Achievement for completing all 50 tags.
- In Saints Row, completing each gang's 25 tags makes the Sprint Bar decrease 10% slower, with Unlimited Sprint awarded for spraying all 75 tags.
- In Saints Row 2, CD collection and Tagging do not have a map markers and both appear in the "Diversions - Collection" menu. They are the only Diversions required for 100% completion.
- There are Saints Row tags in Saints Row 2, such as within the Stilwater Penitentiary exercise yard.
- Tagging does not appear in Saints Row: The Third due to the fact that there are no tags to cover as the enemy gangs are not street gangs and do not tag their turf.
- In real life, as well as in game, Tagging is a form of graffiti that are used by some gangs to "mark their territory".