Sierra Mannarino, Registered Social Worker
Reaching out for support can feel vulnerable, especially when you are sharing personal experiences with someone new. My goal is to create a safe, supportive, and non-judgmental space where you can feel comfortable being yourself and exploring what matters most to you.
I take a trauma-informed, anti-oppressive, and client-centred approach to therapy. We will work together at a pace that feels right for you, with your experiences, strengths, and goals helping guide our work. I believe healing is not one-size-fits-all, and I aim to meet you where you are while supporting you in reconnecting with your resilience, sense of self, and capacity for growth.
Sierra Mannarino is a Registered Social Worker (RSW) who provides individual and couples therapy for youth and adults in Sault Ste. Marie, ON. With over 5 years of experience in the mental health field, Sierra brings a warm, collaborative, and client-centred approach to therapy, creating a space where clients can feel safe, respected, and genuinely heard.
Sierra has training and experience in trauma-informed care, Cognitive Behavioural Therapy (CBT), Dialectical Behaviour Therapy (DBT), Narrative Therapy, Solution-Focused Therapy, art therapy, and other evidence-based approaches. She supports clients in exploring their experiences, building on their strengths, developing helpful coping strategies, and identifying meaningful paths toward healing and growth.
Recognizing that every person is unique, Sierra tailors therapy to each client's individual needs and goals. Her approach is grounded in collaboration, anti-oppressive practice, and the belief that clients are the experts in their own lives.
Sierra is also a Non-Insured Health Benefits (NIHB) provider and supports eligible First Nations and Inuit clients in accessing mental health services.
Phone: (249) 480-1774
Email: therapywithsierra@gmail.com
If you’re interested in learning more, I offer a free 15-minute consultation to explore your goals and determine if we’re a good fit to work together.
I support youth and adults navigating a range of concerns, including:
Anxiety, stress, and feeling overwhelmed
Trauma and the effects of difficult or painful experiences
Life transitions and changes
Challenges with identity and sense of self
Relationship and interpersonal difficulties, communication, repair, intimacy
Emotion regulation and coping challenges
Parenting and family concerns
Concerns related to gender and sexual identity
Experiences of oppression, discrimination, or marginalization
Suicidal thoughts and mental health crises
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I hold a Masters of Social Work through Laurentian University and an Honours Bachelor of Social Work from Algoma University.
I am a Registered Social Worker (RSW) with The Ontario College of Social Workers and Social Service Workers (OCSWSSW (https://www.ocswssw.org/).
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When She Leaves Training (2022)
Crisis Prevention Intervention Completed by CPI Institute (2023)
Specialized Advanced Training for Mental Health Providers Completed by CMHO (2023)
Art Therapy Practitioner Certification Completed through Scholistico and NCCAP (2024)
Columbia Suicide Severity Rating Scale Certification by Dr. Posner (2024)
Circle of Security Parenting Certification (2025)
Suicide Prevention Summit Completed by the Mental Health Academy (2024)
2SLGBTQ+ Foundations Course by Rainbow Health Organization (2025)
Trauma-Focused Cognitive Behaviour Therapy Completed by Dr. Carole Swiecicki (2024)
Using Brief Narrative Practices in Single Sessions, Walk-In Clinics, and Brief Services by Karen Young (2024)
Level 1 & 2 Complex Trauma Certification (CCTP/CCTP-II) Completed by Janina Fisher (2025)
Dialectical Behavior Therapy Certification Completed by Dr. Lane Peterson(2025)