NBT Tags for Cat in Minecraft (Java Edition 1.19/1.20)

tabby (Tabby)
black (Tuxedo)
red (Red Tabby)
siamese (Siamese)
british_shorthair (British Shorthair)
calico (Calico)
persian (Persian)
ragdoll (Ragdoll)
white (White)
jellie (Jellie)
all_black (Black)

Example
{variant:british_shorthair}

name (The player that owns the cat. When you set this tag, the OwnerUUID tag will automatically be populated with the appropriate UUID value for the player.)

Example
{Owner:DigMinecraft}

UUID (The UUID of the player that owns the cat. If you don't know the UUID for the player, set the Owner tag instead and the OwnerUUID tag will automatically be populated for you.)

Example
{OwnerUUID:7a56c6b6-ec14-4bcc-ae0b-bf8a753a1ac1}

Example
{CollarColor:4}

0 (The cat is standing)
1 (The cat is sitting)

Example
{Sitting:1}

ticks (The number of game ticks that the cat is in love mode and will try to breed with another cat)

Example
{InLove:400}

ticks (The age of the cat in game ticks. Use 0 or higher for an adult. Use a negative number such as -25000 for a baby.)

Example
{Age:0} example for adult
{Age:-25000} example for baby

ticks (When a baby cat matures, the Age data tag will be set to ForcedAged. However, there have been bugs with this data tag so it may not work properly.)

Example
{ForcedAge:0}

name (The name to assign to the cat)

Example
{CustomName:"\"Whiskers\""}

number (The number of health points the cat has)

Example
{Health:10.0f}

number (The number of absorption health points the cat has)

Example
{AbsorptionAmount:2.0f}

0 (The cat will take damage like normal)
1 (The cat will not take any damage from attacks or physical surroundings)

Example
{Invulnerable:1}

0 (The cat will despawn naturally)
1 (The cat won't despawn)

Example
{PersistenceRequired:1}

0 (The cat will have artificial intelligence and will move/behave like normal)
1 (The cat will have no artificial intelligence and will appear motionless)

Example
{NoAI:1}

0 (The cat will make its usual noises in the game)
1 (The cat will not make any noise in the game)

Example
{Silent:1}

ticks (The number of game ticks until the cat is no longer on fire - there are 20 ticks in a second)

Example
{Fire:60}

ticks (The number of game ticks until the cat can go through a portal again - there are 20 ticks in a second)

Example
{PortalCooldown:120}

ticks (The number of game ticks the cat has air left for)

Example
{Air:120}

cat (The entity value used to represent a cat in the Passengers tag)

Example
{id:cat}

The mob that is riding on the cat. Use the entity value for the passenger mob

Example of skeleton as passenger
Passengers:[{id:skeleton}]