In Naruto World, Seal Symbols are use to restrain a person or certain things. The seal is either a sign of curse or sign of protection. Performing seal justu are done by elite ninja.

Four Season Seal

Four Season Seal Performer: Fourth Hokage
Wearer: Naruto Uzumaki
Location: Stomach
This seal was sealed within Naruto shortly after his birth by Yondaime Hokage. The Fourth sealed the Nine-Tails Demon Fox into Naruto and return gave up his life to save Konoha. It contain 2 Four Season Seal. The 8 Astronomical Seal System allow the 9 Tails Demon Fox chakra to leak out from the 4 Season Seal and allow Naruto to use its chakra. It is also done so to protect Naruto.

Dead Demon Seal

Dead Demon Seal Performer: Third Hokage - Sarutobi
Wearer: Third Hokage - Sarutobi
Location: Stomach
This seal was sealed within the Third Hokage during his battle against Orochimaru, First Hokage, and Second Hokage. Sarutobi called up the Death God to sealed the First and Second Hokage using Demon Soul Seal, each one within his shadow replication. In sealing away their body, the Third had to give up his life. The real Sarutobi seal hold Orochimaru's arms. It also has 2 Four Season Seal.

Evil Suppressor

Evil Suppressor Performer: Kakashi Hatake
Wearer: Sasuke Uchiha
Location: Left back shoulder
This seal was used by Kakashi to sealed Sasuke's Heaven Seal, given to him by Orochimaru. The Evil Suppresser, perform by Kakashi, is just temporary measure to keep the Heaven Seal from taking over Sasuke's body. Though the will of Sasuke can overcome the Evil Suppresser and active the Heaven Seal.

Five Elemental Sealer

5 Elemental Sealer Performer: Orochimaru
Wearer: Naruto Uzumaki (no longer)
Location: Stomach
This seal was used by Orochimaru to seal the 4 Season Seal 9 Tails Demon Fox, given to him by the Fourth Hokage. The Five Elemental Sealer places the odd numbers on top of the even numbers, preventing Naruto from molding his normal chakra correctly. Also because of this, he unable to control or use the Kyuubi chakra. Orochimaru gave Naruto this seal during the 2nd stage of the Chunin Exam. Only the Third Hokage and 3 Sannins can unseal the 5 Elemental Sealer.

Five Elemental Unsealer

5 Elemental Unsealer Performer: Jiraiya
Target: Naruto Uzumaki
Location: Stomach
This seal was used by Jiraiya to unseal the 5 Elemental Sealer, given to him by Orochimaru. It is perform by drawing chakra from 5 fingers and suppressing to unseal the odd and even numbers that prevented Naruto from molding his normal chakra correctly. The technique use is exactly like Orochimaru.

Dark Sealing Method

Dark Sealing Method Performer: Sakon
Target: Container
Location: Around container
This seal was use to sealed the container vessel, holding Sasuke's body inside. The seal is place around the box to contain the vessel inside it and to make sure the Seishingan drug has affected the vessel and not let it escape. Sakon summon the container and perform the seal.

Sasuke & Anko Seal

Sasuke Seal Performer: Orochimaru
Wearer: Sasuke Uchiha & Anko Mitarashi
Location: Left back shoulder
This seal was sealed within Sasuke and Anko by Orochimaru. This curse is the strongest of all the curse seal as it grant special power when it is activated. The seal will spread throughout the body, taking over the person's body when it is activated. A person with this curse only has a 10% of survival. Given to Sasuke during the 2nd stage of the Chunin Exam. Given to Anko when she was little.

Kimimaro Seal

Kimimaro Seal Performer: Orochimaru
Wearer: Kimimaro Kaguya
Location: Chest
This seal was sealed within Kimimaro by Orochimaru. This curse is the 2nd strongest of all the curse seal as it grant special power when it is active. The seal will spread throughout the body, taking over the person's body when it is activated. A person with this curse only has a 10% of survival. Given to Kimimaro after he survive the war against the Mist Village.

Tayuya Seal

Tayuya Seal Performer: Orchimaru
Wearer: Tayuya
Location: Back Neck
This seal was sealed within Tayuya by Orochimaru. This cursed seal grants special power when it is activated. The seal will spread throughout the body, taking over the person's body when it is activated. A person with this curse only has a 10% of survival.