If you, your family, and friends are cat lovers, a great way to invite guests to a fun birthday party is with cat and kitten themed invitations. Below are some cute examples of customizable cat and kitten themed birthday party invitations - plus I had to throw in some Grumpy Cat just for giggles :)

Kitty Birthday Party | Retro Birthday Invitations by OrangeOstrichDesigns
View more Birthday party Invitations at zazzle.com

cute princess kitty birthday party invitation-girl by lucykitty
Find other Fairy Invitations at zazzle.com

Grumpy Cat Invitations - You're Invited by thegrumpycat
Find another invitation online at zazzle.com

Cat With Sunglasses Birthday Party Invite by JillsPaperie
Browse other custom printed invites on zazzle

Pretty Kitty Paris Birthday Invitation by SocialiteDesigns
Look at other Cat Invitations at zazzle.com

Cute Mustache Cat Birthday Announcements by LizaPhoenix
View a different custom printed invite from zazzle.com

Cute Kitten 1st Birthday Invitation for Girls by TheCutieCollection
Design printable invitations online at Zazzle.

KittyStarZ DIVA Kitty Birthday INVITATION by kittystarz
Create your own custom invites at Zazzle.com
Plus here are a few Grumpy Cat Birthday Cards for fun. Who knew being grumpy would make so many people happy?! :)

Happy Birthday Grumpy Cat Greeting Cards by thegrumpycat
Create custom photo note cards at zazzle.com.