Ann Marie Yastishock ’94 

Widener Law Commonwealth Alumna Ann Marie Yastishock ’94 Reflects on Career in Global Public Service

For Ann Marie Yastishock ’94, a career in international diplomacy and development did not begin with a single defining moment. Instead, it grew from a series of opportunities, each one building on the last.

“I was always interested in government and politics and international business,” Yastishock said. “It all kind of came together.”

Born and raised in Harrisburg, Yastishock began her academic journey locally before her career eventually took her around the world. She attended Harrisburg Area Community College before studying abroad at the American University of Rome. She later completed her undergraduate degree in economics at Penn State Harrisburg.

While at Penn State Harrisburg, she participated in a fellowship with the Pennsylvania House of Representatives, an experience that launched her into public service. She went on to work for the House before becoming a regulatory analyst with the Independent Regulatory Review Commission.

When Widener University opened its law school in Harrisburg, Yastishock saw an opportunity to continue building her career while pursuing a legal education.

“I decided that was a perfect opportunity for me to continue working in the public sector and go to school at night,” she said.

Yastishock enrolled in the evening division at what was then Widener University School of Law, graduating in 1994 after four years while working full-time. During her time in law school, she served on Law Review and spent long hours on campus balancing the demands of work and study.

“I always joke that I felt like I lived at Widener,” she said.

Several professors helped shape her early interests, including environmental law scholar John Dernbach. At the time, Yastishock envisioned a future in environmental law and even collaborated with him on regulatory work related to her government role.

But her path soon expanded beyond what she initially imagined.

After graduating, Yastishock pursued opportunities abroad, eventually joining the American Bar Association Central and East European Law Initiative. Her work in Kazakhstan and Tajikistan focused on legal reform in former Soviet states.

That experience opened the door to a long career in international development with the United States Agency for International Development, commonly known as USAID.

Over the next two decades, Yastishock held leadership roles across the agency, including serving as regional legal advisor in the South Caucasus, senior legal advisor in Afghanistan, deputy mission director in Ukraine, and mission director for USAID in Vietnam. She also held senior leadership roles in Washington, overseeing development programs across Asia.

Her career reached a historic milestone when she was appointed U.S. ambassador to Papua New Guinea, Solomon Islands and Vanuatu. From 2024 to 2026, Yastishock represented the United States in the Indo-Pacific, strengthening diplomatic, security and economic relationships across the region.

“It was the honor of a lifetime,” she said. “To serve under two presidents and represent the United States overseas in that capacity was absolutely the highlight of my career.”

As ambassador, Yastishock oversaw initiatives that deepened the United States’ partnership with the region, including defense cooperation efforts, economic engagement, and the signing of a strategic framework agreement between the United States and Papua New Guinea.

Today, she continues her work in international service as a legal advisor, splitting her time between Washington, D.C. and Harrisburg.

Looking back, Yastishock credits her legal training with shaping the way she approaches diplomacy and leadership.
“People always say you go to law school not just to learn the law, but to learn how to think,” she said. “You learn how to analyze, how to strategize and how to communicate. Those skills are critical whether you’re in court or negotiating a strategic framework between countries.”

She also encourages students who are interested in international work or public leadership to stay open to new opportunities.

“Don’t try to jump straight to the end goal,” she said. “It takes time to build the skills and experiences that get you there.”

Early in her career, Yastishock volunteered for assignments others might have overlooked. When the Russo-Georgian War broke out, she stepped forward to work overnight shifts in the State Department’s operations center, helping monitor developments during the crisis. Experiences like that, she said, offered a firsthand look at how global institutions respond in real time and allowed her to build relationships across government.

“Never pass up an opportunity,” Yastishock said. “Even the small ones build your skill set and expose you to new people and ideas.”

Equally important, she said, is maintaining professionalism and kindness in every role.

“Always be respectful and kind to people,” she said. “That builds your reputation, and it matters. Opportunities come from people who remember working with you.”

Reflecting on her path from a Harrisburg student to a global diplomat, Yastishock says Widener played a critical role in making her career possible.

“The ability to study at night while continuing my career in public service gave me opportunities that shaped everything that followed,” she said. “I very much equate my solid legal background and training to Widener.”

Interview conducted in Spring 2026.