Families are integral to supporting children’s communication. Speech pathologists globally use Hanen® programs when working with families to enhance children’s language and communication skills. A comprehensive narrative review was undertaken to examine peer-reviewed evidence regarding the application and outcomes for Hanen® programs between 1994-2024. Using a PRISMA search strategy, 57 peer reviewed articles examined It Takes Two To Talk™ (35.1%), More Than Words™ (31.6%), Learning Language and Loving™ (14.0%), You Make a Difference® (7.0%), Target Word (7.0%), TalkAbility™ (1.8%) and Teacher Talk™ (1.8%). Studies were reported globally: North America (Canada n=12, USA n= 6), Europe (Spain n = 3, Turkey n = 1, Republic of Ireland n = 5, The Netherlands n = 2) United Kingdom (n=10), Australia (n= 14), Hong-Kong (n =2), and Singapore, and Malaysia each had one. These were analysed for credibility, nature and quality. Credibility: Studies included case-control and cohort studies (26.3%), randomised controlled trials (RCT, 17.5%), qualitative or descriptive studies (17.5%), and non-randomised controlled trials (non-RCT, 10.7%). Nature: Studies addressed efficacy (61.4%), effectiveness (7.0%), perceived effectiveness (22.8%) and the remainder were reviews. Quality: Few studies were identified as high quality using PEDro-P (26.3% of the 19 RCTs and non-RCTs), STROBE (4.3% of the 23 case-control and cohort studies) and COREQ (9.1% of the 11 studies achieved a score of over 80%).While evidence exists for implementing Hanen® programs there is need for more research to examine acceptability and feasibility of intervention, reflecting the real-world needs of diverse clinical contexts

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