Can my executor also be a beneficiary of my will?

Yes, and it's extremely common. In fact, many people name their spouse or an adult child, someone who is also a primary beneficiary, as executor, since that person is most motivated to settle the estate efficiently. Being a beneficiary does not disqualify someone from serving as executor. What matters is that the person is trustworthy, organized, and capable of handling the duties impartially toward the other beneficiaries. The main caution is potential conflict of interest or family friction if other heirs feel the executor-beneficiary is favoring themselves, so choose someone the whole family respects. Most states bar only certain people from serving, such as minors, convicted felons, or, in some states, non-residents without a bond. Always name a backup in case your first choice can't serve.