How Oliver Wyman Interviews in 2026: Process, Questions & What They Score

A market-sizing or guesstimate question opening the case, e.g. 'How many golf balls are sold in the United States each day?' (reported by multiple candidates)

'How many ATMs would a remote island (example given: in Greece) need?' (reported by multiple candidates)

Estimate the size of the potable/drinking water market in a specific city for a client considering entry: mirrors Oliver Wyman's own published 'Oil & Gas Price Strategy' practice case, in which an Indian midstream oil & gas company evaluates diversifying into drinking-water distribution in Bangalore against a 5-year payback requirement (note: despite the case's title, it's a market-entry/growth-strategy case, not a pricing case)

A profitability / new-business-line case for a supermarket owner considering adding a pharmacy, evaluated against a payback-period hurdle: mirrors Oliver Wyman's published 'Supermarket Pharmacy' practice case (despite sounding operational, it's primarily a profitability and market-entry case, testing framework-building and payback analysis)

'What's driving declining foot traffic (or declining profitability) at a retail chain?' style diagnostic case

'How should a company enter a new or adjacent market (e.g., a beverage company entering the health-drinks category)?' style market-entry case

General market-sizing exercises (e.g., gym memberships in a country/region, the rice market in a specific country, demand for a new airline route), reported across many candidate interview write-ups as a recurring first-round element

Given a packet of charts, exhibits, and background context, prepare a structured recommendation within roughly 30 minutes

Present your recommendation to a panel of senior consultants/partners in a self-contained talk (candidates are advised to plan for roughly 15-20 minutes of talking, though reported total presentation windows vary by source from ~15 to ~30 minutes)

Field follow-up questions and challenges from the panel, reported to sometimes include interruptions during the presentation itself, not only at the end

Case-presentation topics reported by candidates mirror live-case themes: a profitability decline to diagnose, a market-entry or expansion decision, an operational-efficiency problem, or a growth-strategy recommendation

Walk me through your resume

Tell me about a time you led a team through a difficult or challenging situation

Tell me about a time you had a conflict with a teammate, colleague, or boss and how you resolved it

Tell me about a time you had to change someone's mind, or persuade a group that disagreed with you

Tell me about a time you overcame a really difficult challenge

Tell me about a time you had to make a decision with incomplete information

Tell me about a time you used your analytical skills to solve a problem (reported directly on Glassdoor)

Tell me about a time you set a goal and how you reached it (reported directly on Glassdoor)

Why consulting?

Why Oliver Wyman (as opposed to other firms)?

Why this practice area or office?

What do you know about Oliver Wyman's culture or a recent piece of its work?