Starbucks Sues Union Over Logo: 30% of Workers Could Feel HR Backlash

HR departments across retail and hospitality are closely watching this case, as it could expand the toolkit employers use to counter union drives. If Starbucks succeeds, HR teams may need to draft policies prohibiting union-branded merchandise that mimics corporate logos, complicating the delicate balance between protecting company intellectual property and avoiding unfair labor practice charges. The lawsuit also threatens to deepen the trust divide between frontline workers and management at a time when labor shortages still plague the industry.

On June 18, 2026, Starbucks Corp. escalated its ongoing labor conflict by filing a trademark infringement and dilution lawsuit against Starbucks Workers United and its Iowa City, Iowa, chapter in the US District Court for the Southern District of Iowa. The coffee giant alleges the union’s use of the company’s name and variations of its iconic siren logo on social media channels and on merchandise is causing consumer confusion and weakening the distinctiveness of its brand.

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On June 18, 2026, Starbucks Corp.

This legal move represents a novel front in the protracted battle between Starbucks and the union, which has been organizing baristas at hundreds of stores across the United States. While the company and the union have clashed repeatedly over unfair labor practice charges, bargaining obligations, and store closures, this marks one of the first times a major employer has deployed trademark law as a weapon against a labor organization in such a public and direct manner. The stakes are high: Starbucks’ brand is one of its most valuable assets, and the company argues the union’s unauthorized exploitation of its marks threatens both consumer trust and its commercial interests.

Under the Lanham Act, trademark infringement requires a likelihood of confusion among consumers as to the source or sponsorship of goods. Dilution, meanwhile, protects famous marks from uses that diminish their uniqueness or tarnish their reputation, even without a likelihood of confusion. Starbucks likely will argue that the union’s use of the siren and name on apparel and social media falsely suggests an affiliation or endorsement by Starbucks, thereby diverting goodwill and confusing customers. The complaint specifically points to products and apparel sold by the union, as well as social media posts, that incorporate Starbucks’ protected marks. The choice of venue—Iowa, home to a specific union chapter—may reflect the company’s calculation that local courts could be favorable or that the chapter’s activities are particularly egregious.

The union will likely raise several defenses. First, nominative fair use permits using a trademark to refer to the trademarked good or service when no other term would do. The union could argue it must use Starbucks’ name to identify the employer it represents. Second, the union’s core activities—collective bargaining and organizing—are protected under the National Labor Relations Act (NLRA). The National Labor Relations Board (NLRB) has historically afforded broad leeway for union speech, including the use of employer logos on picket signs and campaign materials, as long as such use does not create confusion about endorsement. The Supreme Court’s 2023 decision in Jack Daniel’s Properties v. VIP Products muddied the waters on trademark and expressive use, but the Court did not directly address labor union speech. Thus, the case could force a court to balance trademark rights against statutory labor protections, potentially setting a significant precedent.