Auto-Tag
| Tag | Additional Tags | Action |
|---|---|---|
| orange_tulip | flower orange_flower tulip | |
| orange_tunic | tunic | |
| orange_veil | veil | |
| orange_vest | vest | |
| orange_wings | wings | |
| orange_wrist_cuffs | wrist_cuffs | |
| orca_hood | animal_hood hood | |
| orchid | flower | |
| organ_(instrument) | instrument | |
| orgy | group_sex | |
| origami_(medium) | papercraft_(medium) unconventional_media | |
| orii_(orii_i) | banned_artist | |
| o-ring_belt | belt o-ring | |
| o-ring_bikini | bikini o-ring swimsuit | |
| o-ring_bottom | o-ring | |
| o-ring_choker | choker o-ring | |
| o-ring_harness | harness o-ring | |
| o-ring_legwear | o-ring | |
| o-ring_panties | o-ring o-ring_bottom panties underwear | |
| o-ring_swimsuit | o-ring swimsuit | |
| o-ring_thigh_strap | o-ring thigh_strap | |
| o-ring_top | o-ring | |
| oripathy_lesion_(arknights) | material_growth | |
| ork_(warhammer) | orc | |
| ornate_armor | armor | |
| ornate_border | border | |
| ornate_ring | jewelry ring | |
| orthodox_cross | cross | |
| ostrich | bird | |
| otomune_kozue_(osanpo_nikki) | character:otomune_kozue |