Double Doctorate: Can You Get Multiple PhDs? - Beyond PhD Coaching (2024)

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Last Updated on: 2nd February 2024, 02:48 am

A question I’ve gotten a few times: “Can I get a double PhD?”

The answer is yes, you can under most circ*mstances. But why?

While there are some exceptional cases, generally I’d discourage people from pursuing a second PhD. Here are some of the reasons why. After I cover those, I’ll talk about situations where it makes sense to get multiple PhDs.

Reasons Not to Get a Double PhD

For the most part, I can’t see a big reason for a second PhD unless there is a second academic track you want to go into. Here are some reasons why getting a double PhD won’t actually double your opportunities.

You Are Already Considered an Expert

Once you have a PhD, few people outside of academia will ask you what it’s in. Outside the academic world, multiple PhDs will rarely give you much extra credibility.

Becoming a Student Again Is Tough

Getting a PhD means you’re very subservient to professors and committee members. Once you’ve emerged from that already and have become an expert, it’s very difficult to get back into that mindset. Doing so requires a lot of self-discipline and humility–sometimes even when it’s unwarranted. While possible, I wouldn’t say it’s desirable.

You Can Do Interdisciplinary Research Already

You probably wouldn’t need a PhD in both Anthropology and Psychology or in both Sociology and Psychology. Those fields are closely related, so an anthropologist can offer valuable insights to the field of psychology, and vice versa. Just make sure to stay within the scope of your knowledge or collaborate with researchers in the other field you’re exploring.

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You Already Have Research Skills

A PhD gives you the research skills, and those can transfer to other areas. If you have all those skills, you can get a lot of the information on your own and become an expert in another field. You know how to research and dive in and find people who can help you find other information, so if you need to know about a subject, you have the resources to do it on your own. You already have research skills. Why pay to learn them again?

A note of caution here: people have been getting in trouble for using “PhD” after their name and commenting on things that they’re not experts on. For example, someone with a PhD in classical literature commenting on current societal issues or health issues and not disclosing that their PhD is in an unrelated field.

If you want to be seen as an expert in a field, you’ll need to have a PhD (or other degree or certification) in that field.

Objectively speaking, the PhD research skills apply across the board. And it may be that through self-study or mentorship, you are an expert in a field unrelated to your degree. However, if you’re putting yourself out there as an expert in another field, you can still say you’re an expert, just don’t put “PhD” after your name (or be clear about what your PhD is in).

You May Be Seen as a “Permanent Student”

If you haven’t had much of a career after your first PhD, you may be seen as a permanent student. As David Clark pointed out on Stack Exchange, “Hovering around getting multiple PhDs would be akin to getting multiple bachelor degrees. People may see you as a permanent student, not someone growing into a mature researcher.”

While there are many advantages to being a permanent student–a life of learning and curiosity being one of them–some hiring managers may consider it a drawback, as they’re looking for someone invested in their career.

Reasons to Get a Double PhD

All that said, there are some situations where getting multiple PhDs may be the best choice. I’ve outlined some of these below.

Expertise in Hard Sciences

The most common instances of people having multiple PhDs are in the hard sciences. For example, medical students may also pursue a PhD in something like chemistry or physiology.

I’ve seen MDs with PhDs and JDs with PhDs. This can come in handy for those more interested in research or administrative work–for example, an MD who pursues a PhD in order to become eligible for an administrative-level position or pursue research.

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Shifting Expertise

If you’re a biologist and would like to become a counselor or a mathematician, you’ll need a new degree. However, a PhD may not always be the best choice. Counselors, for example, can be certified with a Master’s degree (more on that in the next section).

That said, if you’re committed to research or high-level management positions in an entirely new field, it may be that there’s nothing to do but buckle down and get your second PhD.

Certifications with Similar Requirements

If you’re looking to get a certification, and the requirements for that certification are almost as much work as getting a PhD, it usually makes sense to go ahead and get the PhD.

For example, if you are an LMFT and want to get an AAMFT-Approved Supervisor designation, it’s usually worth just going ahead and getting the PhD, since the requirements for both are similarly stringent.

Another reason to go this route: you can get student loans to fund a PhD, but not to fund self-study.

How to Get a Double PhD

See if it’s Necessary

See if getting a Master’s or certification in that field will allow you to do what you want to do. For example, somebody who has a PhD in History who decides they want to be a financial planner. They could get a certified financial planner designation and then be fine. If they want to be a therapist, they just need a master’s degree in therapy.

See if You Can Get Credit from your Previous Program’s Courses

If you’re going into another field where you want to do research, you may get credit for the research courses you took in your previous program. However, there is usually a 5-10 year limit on this.

Pursue Two PhDs Simultaneously

In some cases, it is possible to complete similar coursework for multiple PhDs at the same time.

Christopher Wells pursued two related PhDs simultaneously. He says,“I have a double major doctoral degree that can be seen as two PhDs individually, in inorganic and physical chemistry, and pursued both of the majors at the same time during my nine years at SUNY Albany, from 2002 to 2011. However, my diploma only shows ‘Chemistry’, so I usually tell people directly about the two majors.”

Double PhD Summary

While in most situations getting multiple PhDs is unnecessary, there are some cases where it makes sense. If you’re in one of those situations, look into whether you can get credit for work you’ve already done.