Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in the Registration Statements (No. 333-84638, No. 333-185641, and No. 333-233961) on Form S-8 of Lam Research Corporation of our report dated June 26, 2025, relating to the financial statements and supplemental information of the Savings Plus Plan, Lam Research 401(k) (the "Plan") appearing in this Annual Report on Form 11-K of the Plan for the year ended December 31, 2024.

/s/ Moss Adams LLP

Albuquerque, New Mexico

June 26, 2025