diff --git a/code/game/objects/structures/flags_banners.dm b/code/game/objects/structures/flags_banners.dm
index 4c963ee6dbb..4edb96b8a85 100644
--- a/code/game/objects/structures/flags_banners.dm
+++ b/code/game/objects/structures/flags_banners.dm
@@ -3719,6 +3719,58 @@
/obj/structure/sign/flag/venus/large/west/Initialize(mapload)
. = ..(mapload, WEST)
+// Eris
+/obj/item/flag/eris
+ name = "\improper Erisian Banner"
+ desc = "The banner of the Sovereign Solarian Union of Eris and Dysnomia, a pair of distant dwarf worlds in the Sol System, dominated by the dual influence of the system’s largest communications array and the Solarian Navy."
+ desc_extended = "The banner of Eris and Dysnomia features a bicolor of white and purple, separated by a gold stripe, with a golden ring and diamond at its center. Four purple stars are arranged along the top, while four white stars line the bottom.
\
+ The white field evokes the planetoid’s isolation beyond the Kuiper Belt, while the purple pays tribute to the Solarian Navy and its significant influence on Erisian history. The gold stripe represents the vital flow of interstellar communication that passes through Eris. At the center, the golden emblem symbolizes the unity of Eris and Dysnomia: the circle for Eris, the diamond for Dysnomia, and the surrounding ring for their shared infrastructure and mutual dependence.
\
+ The eight stars represent the primary habitats across the Union, four in purple for those on Eris and Dysnomia themselves, and four in white for the orbital habitats positioned among their Lagrange points."
+ flag_path = "eris"
+ flag_structure = /obj/structure/sign/flag/eris
+
+/obj/structure/sign/flag/eris
+ name = "\improper Erisian Banner"
+ desc = "The banner of the Sovereign Solarian Union of Eris and Dysnomia, a pair of distant dwarf worlds in the Sol System, dominated by the dual influence of the system’s largest communications array and the Solarian Navy."
+ desc_extended = "The banner of Eris and Dysnomia features a bicolor of white and purple, separated by a gold stripe, with a golden ring and diamond at its center. Four purple stars are arranged along the top, while four white stars line the bottom.
\
+ The white field evokes the planetoid’s isolation beyond the Kuiper Belt, while the purple pays tribute to the Solarian Navy and its significant influence on Erisian history. The gold stripe represents the vital flow of interstellar communication that passes through Eris. At the center, the golden emblem symbolizes the unity of Eris and Dysnomia: the circle for Eris, the diamond for Dysnomia, and the surrounding ring for their shared infrastructure and mutual dependence.
\
+ The eight stars represent the primary habitats across the Union, four in purple for those on Eris and Dysnomia themselves, and four in white for the orbital habitats positioned among their Lagrange points."
+ flag_path = "eris"
+ icon_state = "eris"
+ flag_item = /obj/item/flag/eris
+
+/obj/item/flag/eris/l
+ name = "\improper Erisian Flag"
+ desc = "The flag of the Sovereign Solarian Union of Eris and Dysnomia, a pair of distant dwarf worlds in the Sol System, dominated by the dual influence of the system’s largest communications array and the Solarian Navy."
+ desc_extended = "The flag of Eris and Dysnomia features a bicolor of white and purple, separated by a gold stripe, with a golden ring and diamond at its center. Four purple stars are arranged along the top, while four white stars line the bottom.
\
+ The white field evokes the planetoid’s isolation beyond the Kuiper Belt, while the purple pays tribute to the Solarian Navy and its significant influence on Erisian history. The gold stripe represents the vital flow of interstellar communication that passes through Eris. At the center, the golden emblem symbolizes the unity of Eris and Dysnomia: the circle for Eris, the diamond for Dysnomia, and the surrounding ring for their shared infrastructure and mutual dependence.
\
+ The eight stars represent the primary habitats across the Union, four in purple for those on Eris and Dysnomia themselves, and four in white for the orbital habitats positioned among their Lagrange points."
+ flag_size = TRUE
+ flag_structure = /obj/structure/sign/flag/eris/large
+
+/obj/structure/sign/flag/eris/large
+ name = "\improper Erisian Flag"
+ desc = "The flag of the Sovereign Solarian Union of Eris and Dysnomia, a pair of distant dwarf worlds in the Sol System, dominated by the dual influence of the system’s largest communications array and the Solarian Navy."
+ desc_extended = "The flag of Eris and Dysnomia features a bicolor of white and purple, separated by a gold stripe, with a golden ring and diamond at its center. Four purple stars are arranged along the top, while four white stars line the bottom.
\
+ The white field evokes the planetoid’s isolation beyond the Kuiper Belt, while the purple pays tribute to the Solarian Navy and its significant influence on Erisian history. The gold stripe represents the vital flow of interstellar communication that passes through Eris. At the center, the golden emblem symbolizes the unity of Eris and Dysnomia: the circle for Eris, the diamond for Dysnomia, and the surrounding ring for their shared infrastructure and mutual dependence.
\
+ The eight stars represent the primary habitats across the Union, four in purple for those on Eris and Dysnomia themselves, and four in white for the orbital habitats positioned among their Lagrange points."
+ icon_state = "eris_l"
+ flag_path = "eris"
+ flag_size = TRUE
+ flag_item = /obj/item/flag/eris/l
+
+/obj/structure/sign/flag/eris/large/north/Initialize(mapload)
+ . = ..(mapload, NORTH)
+
+/obj/structure/sign/flag/eris/large/south/Initialize(mapload)
+ . = ..(mapload, SOUTH)
+
+/obj/structure/sign/flag/eris/large/east/Initialize(mapload)
+ . = ..(mapload, EAST)
+
+/obj/structure/sign/flag/eris/large/west/Initialize(mapload)
+ . = ..(mapload, WEST)
+
//Hiskyn
/obj/item/flag/hiskyn
name = "\improper Hiskyn's Revanchists flag"
diff --git a/code/modules/client/preference_setup/loadout/items/general.dm b/code/modules/client/preference_setup/loadout/items/general.dm
index 070be2fa080..32510612316 100644
--- a/code/modules/client/preference_setup/loadout/items/general.dm
+++ b/code/modules/client/preference_setup/loadout/items/general.dm
@@ -291,6 +291,7 @@
banners["banner, New Peoria"] = /obj/item/flag/new_peoria
banners["banner, Lhokgon"] = /obj/item/flag/lhokgon
banners["banner, Venus"] = /obj/item/flag/venus
+ banners["banner, Eris"] = /obj/item/flag/eris
banners["banner, The Consortium of Hieroaetheria"] = /obj/item/flag/consortium
banners["banner, Eternal Republic of the Ekane"] = /obj/item/flag/ekane
banners["banner, Union of Gla'orr"] = /obj/item/flag/glaorr
@@ -412,6 +413,7 @@
flags["flag, New Peoria"] = /obj/item/flag/new_peoria/l
flags["flag, Lhokgon"] = /obj/item/flag/lhokgon/l
flags["flag, Venus"] = /obj/item/flag/venus/l
+ flags["flag, Eris"] = /obj/item/flag/eris/l
flags["flag, The Consortium of Hieroaetheria"] = /obj/item/flag/consortium/l
flags["flag, Eternal Republic of the Ekane"] = /obj/item/flag/ekane/l
flags["flag, Union of Gla'orr"] = /obj/item/flag/glaorr/l
diff --git a/html/changelogs/Bat-ErisFlag.yml b/html/changelogs/Bat-ErisFlag.yml
new file mode 100644
index 00000000000..ab759a245ed
--- /dev/null
+++ b/html/changelogs/Bat-ErisFlag.yml
@@ -0,0 +1,5 @@
+author: The_Ill_fated
+delete-after: True
+changes:
+ - rscadd: "Adds Eris Flag and Banner to player loadout options."
+ - imageadd: "New sprites for the Eris Flag and Banner."
diff --git a/icons/obj/structure/flags.dmi b/icons/obj/structure/flags.dmi
index b8db921131e..60f2e24e101 100644
Binary files a/icons/obj/structure/flags.dmi and b/icons/obj/structure/flags.dmi differ