diff --git a/src/shims/unix/freebsd/foreign_items.rs b/src/shims/unix/freebsd/foreign_items.rs
index 869434e887..b65476bc31 100644
--- a/src/shims/unix/freebsd/foreign_items.rs
+++ b/src/shims/unix/freebsd/foreign_items.rs
@@ -26,10 +26,10 @@ pub trait EvalContextExt<'mir, 'tcx: 'mir>: crate::MiriInterpCxExt<'mir, 'tcx> {
                     this.check_shim(abi, Abi::C { unwind: false }, link_name, args)?;
                 this.write_null(dest)?;
             }
-            "pthread_set_name_np" => {
+            "pthread_set_name_np" | "pthread_setname_np" => {
                 let [thread, name] =
                     this.check_shim(abi, Abi::C { unwind: false }, link_name, args)?;
-                let max_len = usize::MAX; // freebsd does not seem to have a limit.
+                let max_len = 20; // freebsd silently truncates to MAXCOMLEN (+ 1).
                 let res = this.pthread_setname_np(
                     this.read_scalar(thread)?,
                     this.read_scalar(name)?,
@@ -37,6 +37,16 @@ pub trait EvalContextExt<'mir, 'tcx: 'mir>: crate::MiriInterpCxExt<'mir, 'tcx> {
                 )?;
                 this.write_scalar(res, dest)?;
             }
+            "pthread_get_name_np" | "pthread_getname_np" => {
+                let [thread, name, len] =
+                    this.check_shim(abi, Abi::C { unwind: false }, link_name, args)?;
+                let res = this.pthread_getname_np(
+                    this.read_scalar(thread)?,
+                    this.read_scalar(name)?,
+                    this.read_scalar(len)?,
+                )?;
+                this.write_scalar(res, dest)?;
+            }
 
             // errno
             "__error" => {