User Icon

Across Nintendo systems several profile icons themed around the SS undefined are available.

Base icons
Several profile icons are available through a player's profile on the Nintendo Switch. Both and  icons are available. The available icons are:
 * A pink colored Inkling with the Haircut hairstyle.
 * A green colored Inkling with the Slick hairstyle.
 * A yellow/green colored Inkling with the Wave hairstyle.
 * A purple colored Inkling with the Hipster hairstyle.
 * A pink colored Squid.
 * A purple colored Squid.
 * A orange colored Inkling with the Hippie hairstyle.
 * A blue colored Inkling with the Topknot hairstyle.
 * A lime colored Inkling with the Hippie hairstyle.
 * A purple colored Inkling with the Topknot hairstyle.
 * Callie
 * Marie
 * A orange colored Inkling with the Hippie hairstyle being covered in blue ink.
 * A orange colored Squid.
 * A lime colored Squid.
 * Agent 8 with the Tentacurl hairstyle.
 * Agent 8 with the Punk hairstyle.
 * A magenta colored Octopus.
 * Pearl
 * Marina
 * Cap'n Cuttlefish as he appears in.
 * Judd
 * Lil Judd
 * Sheldon

Nintendo Switch Online icons
Numerous icon parts for and  have been released through the Nintendo Switch Online service on the Nintendo Switch.

Set 1
From 2022-04-05 to 2022-05-02, 80 icon elements pertaining to Splatoon 2 were available on the service, with the icons being changed per week.

Set 1
From 2022-09-08 to 2022-10-06, icon elements pertaining to were available on the service, with the icons being changed per week. Each week's set of icons were now titled as one of four waves.

Set 2
From 2022-11-30 to 2023-01-09, five additional waves of icon elements were available on the service, with the icons again being changed per week.

Set 3
From 2023-03-23 to 2023-04-06, two additional waves of icon elements were available on the service, with the icons again being changed per week. Most of the new icon parts were related to the first wave of Splatoon 3: Expansion Pass.