Which helicopter is used by the United States Marine Corps as a utility helicopter?

The UH-1Y Venom is recognized as the primary utility helicopter used by the United States Marine Corps. It is a modernized variant of the iconic Bell UH-1 Iroquois (Huey), known for its versatility and adaptability to a wide range of missions including troop transport, medevac, and logistical support. The design incorporates advanced avionics, improved engines, and upgraded rotor systems, making it capable of operating effectively in varied environments.

In contrast, the SH-60F Seahawk primarily serves as a naval utility helicopter for the Navy, focusing on anti-submarine warfare and maritime operations rather than general utility purposes for the Marine Corps. The TH-6B is a training helicopter used by the Navy for training purposes rather than as a frontline utility rotorcraft. The VH-60N Night Hawk is a variant of the Black Hawk helicopter, mainly utilized for VIP transport, specifically for the President and other high-ranking officials, which does not classify it as a utility helicopter for combat or operational missions.

Thus, the UH-1Y Venom stands out as the suitable answer due to its established role and multifaceted capabilities within the Marine Corps.