Paris Hilton Got a New $8,000 Bitch

Puppy love ain't cheap for Paris Hilton -- not when she's scooping up 12 ounces of chihuahua worth $8k ... very delicately, of course.

TMZ has learned the 4-month-old pup was delivered to Paris in NYC on Monday from a boutique teacup breeder.

Paris is a bit of a connoisseur when it comes to teacup pooches ... she spent $25k on two others over a year ago, and bought a teacup Pomeranian in 2014 for $13k. So, if you're keeping score at home, that's about $46k on about 5 pounds worth o' dogs ... in 2 years.

We're told the new dog doesn't have a name yet. Paris is asking her followers to decide on social media, although she's partial to London or Ibiza. We're guessing China's off her short list.