Wedding

My sister in law was married in France because apparently she thought it sounded cool and she was living there at the time but it was a lot of work.

I don't think pastors usually have rights or interests in officiating a wedding in a Roman Catholic church so if you're looking for a pastor I'd check Protestant churches and US and French law. I think it's a lot of hassle when you could just get married at home then vacation in Paris.

The only marriages that are legal in France are civil ones. And those require a lot of hoops to be jumped through for non citizens, including proof of residency.

You could have a wedding ceremony in a church, but it would not be a legal marriage. Also, a church ceremony is conducted by the priest or minister who presides over that church in most cases. A Protestant pastor would most certainly not be permitted to conduct a service in a Catholic Church. (Although I've seen both a Catholic Priest and a Protestant Minister co-officiate at a mixed marriage). If you still wish to proceed, you can Google the churches in central Paris for their contact information to find out more about their requirements for a wedding ceremony. Note that most Catholic churches require at least one of you to be Catholic, and supply the necessary paperwork to confirm.

Thanks to all who have responded. Additional insights welcome. It’s looking like a neat idea that may be too complicated to easily execute. Hope to read a few more opinions!

I'm sure it wouldn't be easy even if it's possible. Why do you want to do it ?

Opinions don't matter.
As mentioned above, there are lots of hurdles. Most people marry at home, then have a symbolic ceremony in Europe.
https://www.frenchweddingstyle.com/how-to-get-married-in-france-as-a-foreigner/#:~:text=To%20legally%20marry%20in%20France%2C%20the%20following%20rules,Both%20individuals%20must%20consent%20freely%20and%20without%20coercion.

https://fr.usembassy.gov/services/marriage-and-civil-partnerships-pacs-in-france/

Assuming you are an American, the State Department offers information about the process if you want an official French marriage. If you have a religious affiliation in the US your church may be able to provide a contact overseas, but as noted you will probably need proof of church membership and have completed any pre-marriage requirements (like counseling).

If you're set on the idea, you probably would want to engage the services of a professional wedding planner in Paris. That won't be inexpensive but they can definitely help with the necessary language, legal, and cultural interpretation.

Try contacting the American Church in Paris. It's on the Left Bank near the Eiffel Tower. https://www.acparis.org.

It is a lovely idea, and congratulations.

It may be non-trivial though - all the hoops will give you lots of stories to regale each other with over the decades!

A couple of months ago a young family member got married in Italy. The civil part was so difficult that they ended up having a quiet civil ceremony in the US first and a second religious ceremony in Italy.

Thanks to Twister. I have sent an inquiry to the American Church in Paris for information. Jim

Another idea- a lot of people take pictures in Paris in their wedding clothes. I saw a couple get sent away from Opera Garnier because they don't allow suitcases so I'm not necessarily advocating it but outdoors there would be a place somewhere.

Legal marriage in France is at the courthouse officiated by a member of the local government after the forthcoming marriage is posted for two weeks outside city hall. That's how my marriage was handled almost fifty years ago in the suburb where we lived. However, today in France less than 50% of couples get married. Some sign a legal agreement called a Pax instead. About half of the couples raising families never marry, which is perfectly acceptable in France.
My niece had a legal wedding at one of the city halls in Paris where she lived, followed that weekend with a "fake" wedding with a party in a chateau in the Loire Valley. They had to search a long time to find an officiant to perform the ceremony and finally found a pastor they had never met. In the middle of the ceremony, he passed a hat to collect donations, LOL.
Since a non-city hall wedding in France is all for show, maybe you could just hire a photographer to take lovely pictures of you for memories about your honeymoon trip to France. Foreigners using public space in a crowded city like Paris, treating it as a movie set when others are tying to use the space, too, is really annoying to locals. The city is already crowded, and it's not a prop. This is the most romantic city in the world. You'll have wonderful memories no matter what.

I think it's annoying to other tourists too. I wasn't trying to recommend it exactly, just that it'd be logistically easier than trying to find a church but I am sorry if I suggested something bad.

I think this is a romatic idea. However, as others have said, obtaining a legal marriage in France as a non-resident is challenging (please refer to links above.) You could do a symbolic service whether at a church, a chateau (many non-residents in my area opt to have a wedding at a chateau), etc. If you are catholic, reaching out to your parish priest is a good place to start. They could connect you with a local Catholic church (Notre Dame is a Catholic church so I'm making an assumption that this is the type of church you are seeking) and assist with some logistics. Congratulations and good luck!

The OP will quickly put into practice the French saying "marriage is solving together problems that you wouldn't have had alone". :)

My husband and I got married in Hawaii 39 years ago. We engaged the concierge at the hotel to explore options. We thought getting married on a catamaran would be a great idea. The concierge asked if we thought the other tourists on the catamaran with us paid to be an unwilling observer at a wedding. Good point. Their holiday plans didn’t include us. We ended up getting hitched on a sailboat off Lahaina. We weren’t in anybody else’s view finder.