- ACLN stands for Audit Committee Leadership Network (accounting)
- ACLN stands for Alabama Community Leadership Network
- ACLN stands for Application Converter for Lotus Notes (Microsoft)
- ACLN stands for Annapolis County Learning Network (Canada)
- ACLN stands for Australian Control Line News (newsletter)
- ACLN stands for American Corporate Leadership Network
- ACLN stands for Abbotsford Christian Leaders Network (Canada)
- ACLN stands for Association Chicana Latina Nurses
ACLN