法语有“o上面有两点”这种情况吗？

法语里没有，拉丁语里也没有。据我所知，德语，瑞典语，土耳其语里有这个字母。

ö这个音很少出现但是在人名里面经常出现

The letter Ö occurs in the Icelandic, Swedish, Finnish, Karelian, Estonian, Hungarian, Azeri, Turkish and Crimean Tatar alphabets, where it represents the vowel sound [ø]. Its name in Swedish, Finnish and Estonian is Öö [øː], not "O with two dots", since /ö/ is not considered a "variant" of the phoneme /o/, but a distinct phoneme.

Note that unlike the O-umlaut (see below), the letter Ö cannot be written as "oe". Minimal pairs exist between 'ö' and 'oe' (and also with 'oo', 'öö' and 'öe'). Consider Finnish eläinkö "animal?" (interrogative) vs. eläinkoe "animal test", or Finnish töissä "at work", toissa "before last" (cf. Germanic umlaut). In the case the character Ö is unavailable, O is substituted and context is relied upon for inference of the intended meaning.

It is collated as an independent letter, usually by placing it at the end of the alphabet. It is the last letter in the Finnish alphabet, after Z, Å and Ä, thus fulfilling the place of "omega", for example in the Finnish expression aasta ööhön "from A to Z".

In Estonian, öö means night.

法语等拉丁语系中都没有，但是像什么德育啊瑞士语啊北欧语言啊之类的就有了。

反正我是没见过o上带点的单词，还有，楼上说的对，noel里是e上有2点而不是o

好象有吧..
圣诞节快乐的那个noel的O上面貌似有的..
我忘记了.