diff --git a/gh-cli/README.md b/gh-cli/README.md
index 601778e..e64e16d 100644
--- a/gh-cli/README.md
+++ b/gh-cli/README.md
@@ -1227,6 +1227,25 @@ Code search in an organization.
 
 See the [docs](https://docs.github.com/en/rest/search?apiVersion=2022-11-28#search-code) and [StackOverflow](https://stackoverflow.com/questions/24132790/how-to-search-for-code-in-github-with-github-api) for more information.
 
+### search-repositories-by-custom-property.sh
+
+Search for repositories in an organization with specific custom properties using GitHub's search API with custom property filters.
+
+The script automatically adds the 'props.' prefix to property names and supports multiple search formats:
+
+- Single property: `RepoType:IssueOps`
+- Multiple properties (AND logic): `RepoType:IssueOps Environment:Production`
+- Exclusion search: `no:RepoType` (finds repos without the RepoType property)
+- Mixed queries: `RepoType:IssueOps&Environment:Production`
+
+Example usage:
+
+```shell
+./search-repositories-by-custom-property.sh joshjohanning-org 'RepoType:IssueOps'
+./search-repositories-by-custom-property.sh joshjohanning-org 'no:RepoType'
+./search-repositories-by-custom-property.sh joshjohanning-org 'RepoType:IssueOps Environment:Production'
+```
+
 ### set-branch-protection-status-checks.sh
 
 Set the branch protection status checks - and optionally create a branch protection rule if it doesn't exist or set the required status checks setting on an existing branch protection rule if it isn't set
diff --git a/gh-cli/search-repositories-by-custom-property.sh b/gh-cli/search-repositories-by-custom-property.sh
new file mode 100755
index 0000000..7aa27ad
--- /dev/null
+++ b/gh-cli/search-repositories-by-custom-property.sh
@@ -0,0 +1,89 @@
+#!/bin/bash
+
+# Search for repositories in an organization with specific custom properties
+# Uses GitHub's search API with custom property filters
+
+if [ -z "$1" ]; then
+  echo "Usage: $0 <org> [property_query]"
+  echo "Example: ./search-repositories-by-custom-property.sh joshjohanning-org"
+  echo "Example: ./search-repositories-by-custom-property.sh joshjohanning-org 'RepoType:IssueOps'"
+  echo "Example: ./search-repositories-by-custom-property.sh joshjohanning-org 'Environment:Production'"
+  echo "Example: ./search-repositories-by-custom-property.sh joshjohanning-org 'RepoType:IssueOps&Environment:Production'"
+  echo "Example: ./search-repositories-by-custom-property.sh joshjohanning-org 'RepoType:IssueOps Environment:Production'"
+  echo "Example: ./search-repositories-by-custom-property.sh joshjohanning-org 'no:RepoType' # Repos without repo_type property"
+  echo "Note that you can't add the same property twice in the same search query"
+  exit 1
+fi
+
+org="$1"
+property_query="${2:-RepoType:IssueOps}"
+
+# Add 'props.' prefix automatically to each property if not already present
+# Handle multiple properties separated by & or space
+if [[ "$property_query" != *props.* ]]; then
+  # Replace property names with props. prefix for multiple formats
+  # Handle & separated: RepoType:IssueOps&Environment:Production
+  # Handle space separated: RepoType:IssueOps Environment:Production
+  # Handle no: qualifier: no:repo_type becomes no:props.repo_type
+  # First handle regular properties, then fix the no: qualifier placement
+  property_query=$(echo "$property_query" | sed -E 's/(^|[[:space:]&])([A-Za-z][A-Za-z0-9_]*):([^&[:space:]]+)/\1props.\2:\3/g')
+  property_query=$(echo "$property_query" | sed -E 's/props\.no:/no:props./g')
+fi
+
+echo "Searching for repositories in $org with property: $property_query"
+echo ""
+
+# Use the search API to find repositories with custom properties
+# The search query combines org filter with custom property filter
+search_query="org:$org $property_query"
+# Replace spaces with + for proper GitHub search API formatting
+search_query=$(echo "$search_query" | sed 's/ /+/g')
+
+echo "search query: $search_query"
+
+# Make the API call - don't URL encode the plus signs, GitHub expects them as literal +
+response=$(gh api --paginate "search/repositories?q=$search_query" 2>&1)
+exit_code=$?
+
+if [ $exit_code -ne 0 ]; then
+  if echo "$response" | grep -q "HTTP 403\|rate limit"; then
+    echo "Error: Rate limit exceeded or authentication issue"
+    echo "Make sure you have a valid GitHub token and try again later"
+    exit 1
+  elif echo "$response" | grep -q "HTTP 422"; then
+    echo "Error: Invalid search query"
+    echo "Check that the custom property name and value are correct"
+    exit 1
+  else
+    echo "Error: Search failed"
+    echo "$response"
+    exit 1
+  fi
+fi
+
+# Parse and display results
+# With --paginate, gh returns all items as a single JSON array when there are multiple pages
+# For single page, it returns the normal response object
+if echo "$response" | jq -e 'type == "array"' >/dev/null 2>&1; then
+  # Multiple pages - response is an array of page objects
+  actual_count=$(echo "$response" | jq 'map(.items) | add | length' 2>/dev/null | head -1)
+  total_count=$(echo "$response" | jq -r '.[0].total_count' 2>/dev/null | head -1)
+  echo "Found $actual_count repo(s) (out of $total_count total matching):"
+  echo ""
+  echo "$response" | jq -r 'map(.items) | add | .[].full_name'
+else
+  # Single page - normal response object
+  total_count=$(echo "$response" | jq -r '.total_count' 2>/dev/null | head -1)
+  echo "Found $total_count repo(s) matching the criteria:"
+  echo ""
+  if [ "$total_count" -gt 0 ] 2>/dev/null; then
+    echo "$response" | jq -r '.items[] | .full_name'
+  else
+    echo "No repositories found with the specified custom property."
+    echo ""
+    echo "This could mean:"
+    echo "- No repositories have this custom property set"
+    echo "- The property name or value is incorrect"
+    echo "- You don't have access to repositories with this property"
+  fi
+fi