Here are Australian (and Australia‑available) pet‑food brands that market to owners seeking “natural” cat diets — grouped by origin and with a short note on what they emphasise:

Australian brands

• Ivory Coat — markets grain‑free / “natural” recipes, freeze‑dried/raw‑boost options and Australian‑sourced meats. (petbarn.com.au)
• Black Hawk — Australian brand promoting “premium, natural ingredients” and grain‑free cat recipes. (blackhawkpetcare.com)

New Zealand brands widely sold in Australia

• Feline Natural — freeze‑dried, high‑meat canned and pouch diets promoted as “whole‑food” / natural, high‑protein options. (au.felinenatural.com)
• ZiwiPeak — air‑dried, limited‑ingredient, high‑meat recipes (marketed as natural, 96% meat/organs/bone). (petcity.com.au)

International / imported brands commonly sold in Australia (marketed as natural / biologically appropriate)

• Applaws — markets “natural” limited‑ingredient wet foods and dry options in Australia. (applaws.com.au)
• Orijen — markets “biologically appropriate” (high‑meat, grain‑free) cat diets and is widely available in AU. (myrainbowpets.com.au)
• Tiki Cat — wet foods designed to “mimic natural prey” (high‑protein, moisture‑rich). (petbarn.com.au)
• Weruva — grain‑free, high‑protein wet diets sold in AU, promoted as premium/natural recipes. (fishandfeather.com.au)
• FirstMate — limited‑ingredient / “grain‑friendly” formulas available in Australian retailers (imported). (firstmate.com)
• Nutrience (Infusion range) — sold in AU and presented as natural/wholesome formulas (fresh proteins, botanicals). (sniffout.com.au)

Quick notes

• “Natural” is a marketing term with no single legal definition for pet food in Australia — check ingredient lists (first ingredient(s), presence/absence of fillers, preservatives) and feeding guidance on the product pages above.
• If you’re switching diets or your cat has health issues (allergies, kidney disease, urinary concerns, weight loss/gain), check with your vet before changing to a new “natural” or high‑protein diet.

If you want, I can: (a) narrow these to only Australian‑made brands, (b) list which of these sell wet / dry / freeze‑dried / raw options in Australia, or (c) pull up local retailers and price ranges for any specific brand.