---
title: "Delete a dataset split"
method: DELETE
path: "/v1/datasets/{dataset_identifier}/splits/{split_id}"
tags: ["datasets"]
---

# Delete a dataset split

`DELETE /v1/datasets/{dataset_identifier}/splits/{split_id}`

## Path parameters

- `dataset_identifier` string, required — The dataset identifier: either dataset ID or dataset name.
- `split_id` string, required — The ID (GlobalID) of the dataset split.

## Response `204`

Successful Response

## Other responses

- `403` — Forbidden
- `404` — Dataset or split not found
- `422` — Invalid dataset split ID

## Changes

- **2026-08-08** `a14d8ad6f708` — 1 info
  - endpoint added

[Change history](https://skmtc.dev/arize-ai/apis/arize-phoenix-rest-api/changes/v1/datasets/:dataset_identifier/splits/:split_id/delete.md)

---

[API](https://skmtc.dev/arize-ai/apis/arize-phoenix-rest-api.md) · [All operations](https://skmtc.dev/arize-ai/apis/arize-phoenix-rest-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/arize-ai/arize-phoenix-rest-api/revisions/f440cb6427a5/schema)