National Route 51 (Vietnam)

{{Infobox road

| country = VNM

| type = QL

| route = 51

| photo = Thị trấn Phú Mỹ, Tân Thành.JPG

| photo_notes = National Route 51 at Phú Mỹ, Ba Ria Vung Tau

| map =

| length_mi =

| length_km = 86

| length_round =

| length_ref =

| established =

| direction_a = North

| terminus_a = {{Vietnam road banner|QL|1|link=1}}/{{Vietnam road banner|QL|52}}/{{Vietnam road banner|QL|15|link=1}} Vũng Tàu Junction in Long Bình Tân Ward, Biên Hòa

| junction = {{Vietnam road banner|CT|01}} in Long Thành, Đồng Nai

{{Vietnam road banner|QL|55|link=1}} and {{Vietnam road banner|QL|56|link=1}} in Bà Rịa

| direction_b = South

| terminus_b = Cửa Lấp Bridge Roundabout, Ward 12, Vũng Tàu

| ahn = {{Jct|country=VNM|AH|17}}

| previous_type = QL

| previous_route = 50

| next_type = QL

| next_route = 52

| province =

| provinces = Đồng Nai, Bà Rịa–Vũng Tàu

| districts = Long Thành district

| cities = Biên Hòa, Phú Mỹ, Bà Rịa, Vũng Tàu

| towns = Long Thành

| alternate_name = Trường Chinh Street (Long Thành)
Độc Lập Street (Phú Mỹ)
Võ Nguyên Giáp Street (Vũng Tàu)

| name = National Route 51

}}

National Route 51 ({{langx|vi|Quốc lộ 51}}) is a highway starting from the city of Biên Hòa to Vũng Tàu in the Southeast region of Vietnam, passing Biên Hòa City, Long Thành district in Đồng Nai province and the cities of Phú Mỹ, Bà Rịa and Vũng Tàu in Bà Rịa–Vũng Tàu province. This is the backbone route linking Bà Rịa–Vũng Tàu province with Đồng Nai province and Ho Chi Minh City. With a total length of 85.6 km {{Citation needed|date=August 2007}}, with of 15 to 23 km, this road includes 15 bridges, going through several important industrial parks of the Principal Economic Area of South Vietnam, an area which includes province in Southeast region. The towns and cities along this road include: Long Thành (where Long Thanh International Airport is under construction), Tam An Town, Nhơn Trạch City, Phú Mỹ (an important electricity hub of Vietnam). This national road starts from the roundabout in Biên Hòa city, 20 km northeast of Saigon Bridge of Ho Chi Minh City through Hanoi Highway.

Segments

Besides the name National Route 51, the route currently has 3 stretches with three different names run through the downtown of cities or district, included:

Trường Chinh Street: in Long Thành, from Trầu Stream T-intersection to Long An commune
Độc Lập Street: in Phú Mỹ, from Thị Vải Bridge to Nguyễn Huệ Street
Võ Nguyên Giáp Street: in Vũng Tàu, from Cỏ May Bridge to Cửa Lấp Roundabout