Chemical engineering or Mechanical engineering ?
I’ll go with “yes”.
You are the king bro.
Nuclear engineering schools:
Air Force Institute of Technology >
Georgia Institute of Technology >
Idaho State University >
Massachusetts Institute of Technology >
Missouri University of Science and Technology (Formerly Missouri University of Science and Technology) >
North Carolina State University at Raleigh >
Oregon State University >
Pennsylvania State University >
Purdue University at West Lafayette >
Rensselaer Polytechnic Institute >
South Carolina State University >
Texas A&M University >
United States Military Academy >
University of California, Berkeley >
University of Florida >
University of Illinois at Urbana - Champaign >
University of Massachusetts Lowell (Formerly University of Massachusetts Lowell) >
University of Michigan >
University of New Mexico >
University of Tennessee at Knoxville >
University of Wisconsin - Madison >
Virginia Commonwealth University >
The new name is 1000% better.
I know these nuclear eng bsc programs. I asked which engineering is closer to Nuclear Engineering.
I am not really going to answer your question directly, but of all the engineering disciplines utilized by the nuclear power industry, mechanical is the most prevalent, and there is a lot of overlap with the nuclear folks. But nuclear engineering extends beyond power and does a lot of work in materials/medicine/etc which is why it has its own branch. So in some ways, the first answer in this thread is the most accurate - “yes”
Pitt has a nuclear engineering certificate program as part of their Mechanical Engineering and Materials department.
I meant to add that nuclear engineering involves multiple disciplines.
I am wondering that is chemical engineering a good path for nuclear ? Maybe after MechE ?
I always made it a point to walk around the NukE building at Purdue 
I suggest the OP fetches plans of study for NukE vs MechE etc and compares. MechE is closer tho.
Noobdotaci - what is your goal? It feels like you are trying to force fit a degree to a goal you already have. Lots of good advice can be found here, but knowing a little more about the end goal would be useful.
turbo - don’t be afraid of the nuke building. if there is anything dangerous you get a set of paper coveralls to protect you
You will find most Nuc E programs require quite a few Mech E courses: thermo, fluids, statics, mechanics of materials, etc. Some schools now have the Nuc E program folded into the Mech E department. So, as far as overlap, Mech E would be the better choice.
Why are you asking this question? Are you looking for an alternative to Nuc E because you feel it is too narrow? Or is not offered at your school? What do you actually want to do?
What’s with the lack of respect for Nukes?!?! If we tell you to put on the paper coveralls, put on the #$#&#% coveralls!!
A few thousand rads never hurt nobody.
It’s much closer to Mechanical (and Materials) than Chemical, as VMT said, they share some basic classes.
Not a lot of organic chemistry or stirred tank reactors in most nuclear plants … but lots of pipes. Some human physiology type stuff too, especially if you get too many rads. Out of all my ChemE classes, few of the chem classes really went into details on nuclear reactions and I don’t think other than steam tables, there would be much direct mapping.
Then again, most engineers learn a LOT of the necessary things for their jobs on the job, the degree just makes sure you understand the basic math and science content and know how to solve engineering problems.
I am sure there is a need for chemEs in the industry, but it might be 5 or 10% of total.
If this is related to school choice or job prospects, I would pick a school that has nuclear, but maybe study ME with nuclear electives.
Otherwise, your question is not specific enough.
Why meche ? isn’t it all about chemistry,materials,equations,radiation,process and reactor design etc…
I just can not understand why mechE is closer to Nuclear engineering.
ChemE also has Fluids,mass transfer,heat transfer, reactor design,materials classes.
And also I am wondering if Meche is the closer major, can we say that ChemE is a close second and also a good path to go nuclear engineering masters or doing nuclear engineering?
Choose the school that has the most Homer Simpson cartoons in department offices…
If the OP’s career path includes licensing of any kind (for nuke operator?) are there any required sequences of classes and the like? In architecture, for example, the licensing board pretty much runs the show so if NucE is anything like that, and a license is required, that may be something to consider.
If we’re talking about a nuclear power plant, there are many mechanical components that a MechE would have received very solid training in order to work on design and operation of such a plant. The cooling system with its pumps, valves, piping. The steam turbine used for power generation, etc. Lots of thermodynamics and fluid mechanics, as well as machines and metallurgy. I have metallurgist friend working at the NRC that goes to inspect nuclear power plants for certification.
Pumps pipes cooling metallurgy thermo etc. these are also main topics of ChemE ?