diff --git a/CHANGELOG.md b/CHANGELOG.md
index e14a587f..8ff814b3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,7 @@ A preview of the next release can be installed from
 ## Unreleased
 
 - Fix [#1688](https://github.com/babashka/babashka/issues/1688): use-fixtures should add metadata to `*ns*`
+- Fix [#1692](https://github.com/babashka/babashka/issues/1692): Add support for ITransientSet and org.flatland/ordered-set
 
 ## 1.3.190 (2024-04-17)
 
diff --git a/feature-yaml/babashka/impl/ordered.clj b/feature-yaml/babashka/impl/ordered.clj
index a0c87a97..0c87bee6 100644
--- a/feature-yaml/babashka/impl/ordered.clj
+++ b/feature-yaml/babashka/impl/ordered.clj
@@ -1,9 +1,14 @@
 (ns babashka.impl.ordered
   {:no-doc true}
   (:require [flatland.ordered.map :as omap]
+            [flatland.ordered.set :as oset]
             [sci.core :as sci]))
 
 (def omap-ns (sci/create-ns 'flatland.ordered.map nil))
+(def oset-ns (sci/create-ns 'flatland.ordered.set nil))
 
-(def ordered-map-ns
+(def ordered-ns
   {'ordered-map (sci/copy-var omap/ordered-map omap-ns)})
+
+(def ordered-set-ns
+  {'ordered-set (sci/copy-var oset/ordered-set oset-ns)})
diff --git a/src/babashka/impl/classes.clj b/src/babashka/impl/classes.clj
index 2b552cb5..4a0889d7 100644
--- a/src/babashka/impl/classes.clj
+++ b/src/babashka/impl/classes.clj
@@ -600,6 +600,7 @@
                       clojure.lang.IRef
                       clojure.lang.ISeq
                       clojure.lang.IPersistentVector
+                      clojure.lang.ITransientSet
                       clojure.lang.ITransientVector
                       clojure.lang.Iterate
                       clojure.lang.LispReader$Resolver
diff --git a/src/babashka/main.clj b/src/babashka/main.clj
index f02ebdd8..86dec93a 100644
--- a/src/babashka/main.clj
+++ b/src/babashka/main.clj
@@ -427,7 +427,8 @@ Use bb run --help to show this help output.
                          'clojure.data.xml.event @(resolve 'babashka.impl.xml/xml-event-namespace)
                          'clojure.data.xml.tree @(resolve 'babashka.impl.xml/xml-tree-namespace))
     features/yaml? (assoc 'clj-yaml.core @(resolve 'babashka.impl.yaml/yaml-namespace)
-                          'flatland.ordered.map @(resolve 'babashka.impl.ordered/ordered-map-ns))
+                          'flatland.ordered.map @(resolve 'babashka.impl.ordered/ordered-map-ns)
+                          'flatland.ordered.set @(resolve 'babashka.impl.ordered/ordered-set-ns))
     features/jdbc? (assoc 'next.jdbc @(resolve 'babashka.impl.jdbc/njdbc-namespace)
                           'next.jdbc.sql @(resolve 'babashka.impl.jdbc/next-sql-namespace)
                           'next.jdbc.result-set @(resolve 'babashka.impl.jdbc/result-set-namespace))
@@ -487,7 +488,8 @@ Use bb run --help to show this help output.
 
 (def edn-readers (cond-> {}
                    features/yaml?
-                   (assoc 'ordered/map @(resolve 'flatland.ordered.map/ordered-map))
+                   (assoc 'ordered/map @(resolve 'flatland.ordered.map/ordered-map)
+                          'ordered/set @(resolve 'flatland.ordered.set/ordered-set))
                    features/xml?
                    (assoc 'xml/ns @(resolve 'clojure.data.xml.name/uri-symbol)
                           'xml/element @(resolve 'clojure.data.xml.node/tagged-element))))
diff --git a/test-resources/pod.clj b/test-resources/pod.clj
index 698471e0..b2fbc58f 100644
--- a/test-resources/pod.clj
+++ b/test-resources/pod.clj
@@ -50,7 +50,8 @@
               (do (write {"format" (if (= format :json)
                                      "json"
                                      "edn")
-                          "readers" {"ordered/map" "flatland.ordered.map/ordered-map"}
+                          "readers" {"ordered/map" "flatland.ordered.map/ordered-map"
+                                     "ordered/set" "flatland.ordered.set/ordered-set"}
                           "namespaces"
                           [{"name" "pod.test-pod"
                             "vars" [{"name" "add-sync"}
@@ -64,7 +65,8 @@
                                     {"name" "error"}
                                     {"name" "print"}
                                     {"name" "print-err"}
-                                    {"name" "ordered-map"}]}]
+                                    {"name" "ordered-map"}
+                                    {"name" "ordered-set"}]}]
                           "ops" {"shutdown" {}}})
                   (recur))
               :invoke (let [var (-> (get message "var")
@@ -119,6 +121,11 @@
                           pod.test-pod/ordered-map
                           (write
                            {"value" "#ordered/map([:a 1] [:b 2])"
+                            "status" ["done"]
+                            "id" id})
+                          pod.test-pod/ordered-set
+                          (write
+                           {"value" "#ordered/set([:a 1 :b 2])"
                             "status" ["done"]
                             "id" id}))
                         (recur))
@@ -159,4 +166,7 @@
           (debug "Running reader test")
           (require '[flatland.ordered.map :refer [ordered-map]])
           (prn (= ((resolve 'flatland.ordered.map/ordered-map) :a 1 :b 2)
-                  ((resolve 'pod.test-pod/ordered-map)))))))))
+                  ((resolve 'pod.test-pod/ordered-map))))
+          (require '[flatland.ordered.set :refer [ordered-set]])
+          (prn (= ((resolve 'flatland.ordered.set/ordered-set) :a 1 :b 2)
+                  ((resolve 'pod.test-pod/ordered-set)))))))))
diff --git a/test/babashka/main_test.clj b/test/babashka/main_test.clj
index 3ee6ab1b..40a82c77 100644
--- a/test/babashka/main_test.clj
+++ b/test/babashka/main_test.clj
@@ -10,6 +10,7 @@
    [clojure.string :as str]
    [clojure.test :as test :refer [deftest is testing]]
    [flatland.ordered.map :refer [ordered-map]]
+   [flatland.ordered.set :refer [ordered-set]]
    [sci.core :as sci]))
 
 (defn bb [input & args]
@@ -632,7 +633,8 @@
   (is (= 2 (bb nil "(set! *data-readers* {'t/tag inc}) #t/tag 1"))))
 
 (deftest ordered-test
-  (is (= (ordered-map :a 1 :b 2) (bb nil "(flatland.ordered.map/ordered-map :a 1 :b 2)"))))
+  (is (= (ordered-map :a 1 :b 2) (bb nil "(flatland.ordered.map/ordered-map :a 1 :b 2)")))
+  (is (= (ordered-set :a 1 :b 2) (bb nil "(flatland.ordered.map/ordered-set :a 1 :b 2)"))))
 
 (deftest data-diff-test
   (is (= [[nil 1] [nil 2] [1 nil 2]] (bb nil "(require '[clojure.data :as d]) (d/diff [1 1 2] [1 2 2])"))))