Exhibit 21.1

Subsidiaries of Reddit, Inc.*

Name of Subsidiary    Jurisdiction of Incorporation or Organization

Reddit Australia Pty Ltd    Australia

Reddit Rede de Comunidades do Brasil Ltda.    Brazil

Reddit Canada Limited    Canada

Dubsmash Inc.    Delaware

Memorable AI LLC    Delaware

Reddit Sub Holding Company, Inc.    Delaware

Spell, LLC    Delaware

Spiketrap Inc.    Delaware

Reddit France SAS    France

Reddit Germany GmbH    Germany

Reddit Community Network India Private Limited    India

Reddit Technologies India Private Limited    India

Reddit Ireland Limited    Ireland

Reddit Community Network Mexico, S. DE R.L. DE C.V.    Mexico

Reddit Netherlands B.V.    Netherlands

Reddit Portugal, Unipessoal LDA    Portugal

Reddit SG Pte. Ltd.    Singapore

Reddit Iberia S.L.    Spain

Reddit UK Limited    United Kingdom

* Includes subsidiaries that do not fall under the definition of “significant subsidiary” as defined under Rule 1-02(w) of Regulation S-X.